Shared Scale Economies Turn Customer Surplus Into a Competitive Moat

Shaan Puri framed Nick Sleep’s investing philosophy around a deceptively simple question: what if the most valuable companies are not the ones extracting the most profit today, but the ones deliberately handing more of the value back to customers?

Sleep, as Puri described him, ran an investment partnership for roughly 15 years, compounded at more than 20%, concentrated much of the fund in Costco, Amazon, and Berkshire Hathaway, then shut it down after “winning the game.” Puri was careful not to treat Sleep as merely a lucky picker of stocks. The useful part, he argued, is the philosophy behind those picks: Sleep’s focus on what Puri called “shared scale economies.”

Traditional economies of scale mean that as a company grows, its cost to serve the next customer falls. A retailer with enormous buying power can purchase more cheaply. A logistics network with more volume can spread fixed costs over more transactions. A warehouse network with more customers can become denser and more efficient. The usual corporate move is to let some of that lower cost fall to the bottom line.

Sleep’s insight, in Puri’s telling, was to look for companies that used scale differently. Costco, for example, buys in bulk and operates with enormous purchasing power, but instead of widening markups, it keeps them low and passes most of the savings to the customer. The company then monetizes through the membership. Puri used round numbers: if a Costco membership costs $100 and a customer saves $1,000 a year by buying groceries there, Costco has created a large consumer surplus and captured only a small slice of it.

That gap matters because it compounds. The better the customer deal, the more customers arrive. The more customers arrive, the more purchasing power Costco gets. The more purchasing power Costco gets, the more it can lower prices or preserve value. Puri’s point was not just that customers like cheap products. It was that the surplus itself becomes a growth engine.

Sam Parr looked up Costco’s scale during the discussion and noted that it does about $300 billion a year in sales. Puri said membership revenue was about $5 billion. The number mattered less as a standalone statistic than as an illustration of Sleep’s lens: a conventional analyst may see the visible profit stream, while Sleep tried to estimate the invisible value being passed through to customers.

Puri described that as an “invisible metric” that does not appear directly on a balance sheet or P&L. The analyst has to calculate it manually: how much surplus is being created, how much of it is being shared with customers, and whether that shared surplus is growing. In Sleep’s model, the best companies were those where the rate of surplus creation and sharing increased over time.

Amazon fit the same pattern. For years, Puri said, Jeff Bezos avoided extracting obvious profits and instead reinvested capital into wider selection, faster shipping, and lower prices — the three things consumers care about most. Prime, like Costco’s membership, made the trade feel obvious to the customer: recurring revenue in exchange for a service that appears to return more value than it costs.

Parr called the idea “groundbreaking” as a metric, while admitting that the word sounded too grand. He said he had never heard companies described by “how much savings we are passing on to you.” He immediately pushed on where else it could apply. Does the model require a huge mass-market business? Does it require a membership?

Puri answered that membership is not required, but it is a particularly elegant form of monetization. He then tested the idea against SpaceX. In his speculative version of how Sleep might view the company, SpaceX lowered the cost to orbit by 100x and did not simply retain the savings; it lowered prices for customers, which helped it take a very large share of payloads. Puri said SpaceX was also trying to lower costs by another 100x and, through Starlink, pair infrastructure scale with a recurring internet subscription. That combination — a mass-market need, falling cost structure, recurring membership, and passed-through savings — made SpaceX look, to him, like a possible “shared scale economies” business.

He repeatedly qualified the example. He said he was a beginner at this analysis, that AI had helped him think through other possible candidates, and that it was not financial advice. The confidence was reserved for the framework, not for a formal investment recommendation.

The broader claim was that a great investing life may not require dozens of insights. Puri invoked Peter Thiel’s language of “secrets”: one or two deep truths may be enough. Thiel had network effects. Buffett had enduring franchises and pricing power. Sleep had shared scale economies.

Puri contrasted that with a famous exchange he described between Elon Musk and Warren Buffett. Musk, according to Puri, had dismissed moats as lame and argued that faster innovation is the real defense. Buffett’s reply, as Puri recounted it, used candy: if a customer asks for a Snickers and the store offers a cheaper “Musk bar,” the customer still wants the Snickers. If the store across the street has Snickers, the customer will cross the street. Buffett’s core insight, in Puri’s version, was to own brands and franchises where customers would resist switching even if paid to do so.

Sleep’s version is different. It is not primarily about charging more because the customer cannot leave. It is about charging less, or capturing less, because the resulting value proposition makes leaving irrational.

Parr connected Sleep’s framework to advice he said he received from Kevin Ryan before founding The Hustle. Ryan, who co-founded Business Insider and founded multiple companies including MongoDB, compared Business Insider’s strategy to Honda versus General Motors in the 1980s.

Parr emphasized that his notes used rougher language than Ryan did. The principle, as he had written it down, was: “start with shitty quality and get traffic to our website and improve.” Business Insider could make content much more cheaply than the Wall Street Journal. The bet was that quality would rise over time while the cost structure stayed low.

Ryan’s analogy, as Parr recalled it, was that Honda was once considered inferior to GM. GM made heavy cars whose doors closed with a satisfying thunk. Hondas seemed rinky-dink. But if the lower-cost producer improves quality while holding costs down, the long-term competitive position changes. The company that starts as a joke becomes the company whose value proposition is hard to match.

Parr extended the same pattern to TCL televisions. Years ago, he said, a 65-inch TCL TV on Amazon felt like a junky but incredibly cheap option — maybe $200 for a large flat screen. Over time, in his view, TCL became a “baller TV company,” while still offering very low prices. He saw the same pattern in Hyundai, Kia, and Genesis: products begin as cheap and just good enough, then improve faster than the price rises.

Puri liked the honesty of this framing because it inverted the way American business people often borrow from Asian culture. Instead of using elevated terms like kaizenA Japanese term often used in business to mean continuous improvement. or wabi-sabi to make ordinary management sound profound, he joked that this was “Hondafication”: start with something bad, keep it bad for a while, then gradually make it less bad.

The joke carried a real business distinction. Many companies improve quality and then raise price. The more interesting version improves quality while preserving the original cost advantage. That creates a form of consumer surplus similar to what Puri admired in Sleep’s companies: the customer receives more value over time without being asked to pay proportionally more.

Parr’s examples were product businesses and media companies rather than retailers with explicit memberships. But the strategic pattern rhymed with shared scale economies: low cost first, improving quality second, customer surplus as the wedge, trust and scale as the compounding result.

The opening example was intentionally ridiculous: “dopamine websites” in South Korea. Puri read a tweet from NEXTA describing services that let users browse delivery menus, read reviews, fill shopping carts, and track couriers — without actually ordering anything. Other services offer “virtual smoke breaks,” where users join anonymous chat rooms to recreate the social feeling of stepping outside to smoke without smoking.

Puri demonstrated a mock food delivery app called “Food Never Comes.” The visible interface let users choose “Rabbit Delivery” for “lightning-fast vibes” or “Turtle Delivery” for “slow-and-steady vibes,” browse fried chicken, cheese balls, soy-glazed chicken, and cola, then proceed as if checking out. The product, as described, simulates the sequence of ordering without the transaction.

Parr’s immediate reaction was disbelief. He asked whether South Korea was also the country with a major birth-rate issue and then wondered how the same place that produced Samsung, Kia Telluride, and Korean pop culture could also produce something so silly. Puri responded by pointing to American absurdity: a motorcycle backflip on the White House lawn and an MMA event setup with the White House in the background. His defense was not that the Korean trend was obviously meaningful, but that no country has a monopoly on irrational spectacle.

Puri also acknowledged uncertainty. He said he could not tell how popular the “dopamine websites” really were. The headline was funny and useful as an opener, but the evidence available to them did not settle scale. Parr noted that Korean and Japanese internet cultures can feel separate from the American social web, making it hard for English-speaking Twitter users to refute or contextualize such stories.

The thread then widened into a more serious point: internet behaviors that look strange in one market often prefigure large businesses elsewhere. Puri said he had studied Asian live-streaming when building Bebo, his live-streaming company that sold to Twitch. He remembered sites such as YY.com where a streamer would appear on video while chat flew horizontally across the screen and thousands of viewers watched someone eat noodles while sending virtual roses worth real money. To a Western observer, it looked bizarre. To the operators studying the market, it was evidence of a behavior with proven demand.

Parr brought up mukbang, the genre of watching people eat. Puri explained it simply: just as people watch others play video games or basketball, people also watch others eat, including the sound and texture of slurping and chewing. Parr admitted he understands the appeal in a different form. He buys candy and sweets he wants to eat, gives them to other people, and asks them to describe the experience. He said he can get a kind of secondhand sugar high.

From there the examples multiplied: oddly satisfying videos, Indian barbers shaving dandruff from heads, and other niches of mediated sensory pleasure. The business claim was that behavior does not need to look dignified to be monetizable. If large numbers of people find satisfaction in a repeated loop — browsing, watching, slurping, cleaning, unboxing, bidding — the loop can become a market.

Puri named several Asian-to-Western internet migrations. Live streaming was more advanced in Asia before the West fully absorbed it. Mobile gaming dominated internationally before comparable behaviors became central in the U.S. Live shopping had been huge in Asia for years; Whatnot became the American analogue, which Puri described as worth $10 billion. He then pointed to short vertical dramas: phone-native soap operas with 30- to 60-second episodes, huge in China, Japan, and Korea, increasingly big in India, and, in his view, likely to become big in the U.S.

The useful posture, in Puri’s view, is not to mock the behavior and stop there. It is to ask when and how it translates.

Parr described his recent interview with Lloyd Blankfein as a study in how formative financial habits persist even after extreme wealth. Blankfein, the former Goldman Sachs CEO, was familiar to Parr as the face of banking during the financial crisis era and Occupy Wall Street. Parr said protesters camped outside Blankfein’s house, and Blankfein joked that Goldman did not make home mortgages, so he did not understand why people blamed him for the mortgage crisis; besides, “that’s what doormen are for.”

Parr’s larger impression was that Blankfein was more likeable, charming, and self-deprecating than the Goldman caricature suggests. He described Blankfein as the son of a Brooklyn postal worker and a stay-at-home mother, someone who called himself a “blue-collar CEO.” Blankfein told Parr he got into Harvard despite not considering himself especially smart, received financial help there, and once asked the financial aid office for money to eat. Parr said Blankfein told him a $500 grant changed his life because it meant he had food.

The career path, as Parr summarized it, was not preordained prestige finance. Blankfein became a lawyer, disliked it, and joined what Parr described as a ragtag Goldman subsidiary in commodities trading, then a lower-status part of the business. Over many years, he rose to partner and eventually CEO. Puri paused on the difficulty of that ascent. Building a company can make more money, he said, but rising through Goldman among “corporate sharks” to become CEO seemed like a different and mind-boggling level of difficulty.

The personal-finance details were the striking part. Parr said Blankfein told him that around 80% of his net worth is in public equities, and that roughly 90% of that portion is still actively day-traded by him. Blankfein said he loves the game and wants to check his phone constantly. Yet, according to Parr, he also refuses to pay for certain subscriptions, including premium financial publications he encounters while researching stocks. He also mentioned choosing the cheaper ad-supported version of Netflix or resisting paying for streaming at all because spending in that category still bothers him.

Puri’s reaction was blunt: “How a billionaire mismanages his finances is what I heard.” From the outside, he said, day-trading a billion-dollar-scale portfolio while refusing to pay for Netflix or premium news did not make logical sense.

Parr agreed that it was not logical. That was precisely why he found it fascinating. Blankfein was not presenting a clean model of rational wealth management; he was describing how someone can become extraordinarily rich and still carry the cheapness, scarcity reflexes, and game-playing instincts formed earlier in life.

The same self-possession showed up when Parr tried to get Blankfein to do a cute Instagram-style book promotion. Parr proposed pretending to review the book, then bringing Blankfein into the frame to explain it. Blankfein refused: “I’m too old for that stuff. I’m not acting cute on Instagram.” Puri said that was the most likeable detail in the story.

Parr’s interest in David Rubenstein centered less on a single business tactic than on the shape of a career. Rubenstein, co-founder of Carlyle Group, was known to Parr first as an author and interviewer of historians, not as a private-equity figure. The more Parr researched him, the more he saw a second and third act built alongside, not merely after, the financial one.

The origin story Parr told began with politics. Rubenstein was a lawyer who left law to work for the Jimmy Carter administration. He joked, according to Parr, that when he joined Carter, Carter was up by 31 points and eventually won by one, prompting Carter to ask what contribution Rubenstein had made. When Carter lost re-election, Rubenstein was 31 and out of a job.

Parr cited a 1993 Michael Lewis article in The National Review titled “The Access Capitalists.” The article, as shown on screen, described the founding of Carlyle in skeptical terms and referred to an early money-making episode as “The Great Eskimo Tax Scam of 1987.” The visible text said the loophole allowed Alaskan companies owned by Eskimos to sell tax losses for cash to other American corporations, which could offset those losses against gains and avoid income taxes.

Parr’s summary was that Rubenstein had a remarkable Washington Rolodex and found a way to organize buyers and sellers around this tax-loss market. In Parr’s telling, sellers could sell $10 million of tax write-offs to buyers for $7 million in cash, leaving the buyer with a $3 million tax benefit. Rubenstein and partners organized roughly $2 billion in such transactions over two or three years and made about $20 million, which later helped fund Carlyle.

Parr initially called it a scam, then corrected himself to “scheme,” joking that he did not want to lose Rubenstein as an upcoming guest.

Carlyle’s later insight, as Parr described it, was to turn Washington access into a private-equity advantage without explicitly selling access. Rubenstein knew many people in D.C. whose government roles ended every four years and who retained networks of powerful relationships. Carlyle could employ such people and buy companies — especially defense-contract-style businesses — where knowledge of and relationships with government mattered.

Puri called the result an “epic charcuterie board career”: a little bit of this, a little bit of that, with the pieces reinforcing each other. He said he respects one-dimensional obsessive careers, but takes more guidance from people with varied, interesting careers.

Rubenstein’s post- or parallel-career fascinated Parr most. He listed books including The American Story, How to Lead, The American Experiment, How to Invest, and The Highest Calling, along with Rubenstein’s Bloomberg interview show. He also listed historical acquisitions and philanthropy: a privately owned copy of the Magna Carta bought for $21 million, a piece of the Declaration of Independence, a Lincoln-signed Emancipation Proclamation, funding for the Washington Monument and Lincoln Memorial restorations, support for the Kennedy Center, and funding for Ken Burns documentaries.

The pattern, to Parr, was not random collecting. Rubenstein buys or supports historically significant artifacts and institutions, loans documents to museums, joins boards, writes books, interviews experts, and turns the accumulation of capital into a public historical identity. Parr liked that Rubenstein had been doing this “along the way,” not only after retiring.

He also liked Rubenstein’s own explanation of his edge. Parr said Rubenstein describes himself as not an exceptional investor, but as someone who works hard, knows many people, connects them well, uses self-deprecating humor to disarm people, and had strong business partners. The implication was not modesty for its own sake. It was a different model of compounding: relationships, credibility, artifacts, institutions, and capital all feeding the same flywheel.

Puri’s strongest business-model analysis concerned PSA, the card-grading company owned by Collectors. Nat Turner, who sold Flatiron Health to Roche and had previously sold another company at a young age, bought Collectors Universe, the parent of PSA, in what Puri described as a second act built around a lifelong collector’s obsession.

The business, in Puri’s telling, controls roughly 70% of its market and had about $400 million of orders sitting in the queue. He caveated the number by joking that if it was wrong, they would fire the researcher. But he used it to illustrate demand intensity: millions of cards waiting to be graded, with grading fees ranging from around $20 on the low end to $1,000 or more on the high end.

The deeper category is what Puri called credence goodsA product or service whose quality is hard for the buyer to evaluate even after purchase.. In a credence good, even after consumption or ownership, the buyer cannot confidently assess quality. Medical care is one example: a patient may know whether an outcome was terrible, but usually cannot distinguish good from great from world-class surgical work. Collectibles have the same problem. A seller says a card is excellent. A buyer says it is only fair. Later the buyer becomes the seller and calls it mint. Condition is arguable; authenticity is even more so.

PSA solves that by becoming a trusted third party. It authenticates the card, grades its condition, and creates a common language for value. A PSA 10 is not merely a description; it becomes part of the asset’s market identity.

Puri compared this to audits and quality-of-earnings reports in M&A. A buyer does not want to personally verify every line of a seller’s financials. Deloitte, Ernst & Young, and similar firms earn enormous fees by attesting that the books are sound. They are not the buyer or seller. They are the trusted intermediary that enables the transaction.

That is why Puri called attestation and credentialing beautiful business models. Once a company becomes the trusted third party, it becomes a “trust tax” on an entire industry. It does not need to own inventory. It does not need to be the best collector. It does not need to be the marketplace. Its value lies in being the standard that all market participants recognize.

The network effect is powerful. If someone owns a potentially valuable card, Puri argued, they will not use a third-rate grader merely to save a little money. They will use PSA because a PSA-certified grade makes the card more valuable. The more PSA appears in the market, the more buyers trust PSA grades; the more buyers trust PSA grades, the more sellers choose PSA; the more sellers choose PSA, the more PSA becomes the unit of account.

Collectors, as Parr observed while looking at the site, now presents itself as infrastructure for “trust, security, and opportunity in collectibles.” The company owns PSA and other related brands. Puri added that PSA has layered storage on top of grading through a vault holding about a million cards. He described the combined model as one part Moody’s — rating an asset class — and one part Fort Knox — storing valuable assets.

Parr questioned the underlying scarcity of sports cards. If Topps or Fanatics can make more cards, what prevents them from flooding the market? Puri’s answer was incentives. If Topps cannot be trusted to control supply, collectors stop buying. More supply reduces the value of each card. The issuer needs scarcity for the market to function, collectors need scarcity for value preservation, and PSA sits below them authenticating, grading, and tracking the real population of cards.

Because PSA sees so many cards, Puri said, it can understand circulation, scarcity, liquidity, and relative value. There is, in his words, something like a market cap for Charizards or Jackie Robinson cards. PSA can see how many are out there, how many trade, and what condition bands exist.

Turner’s acquisition made sense to Puri because the company was dominant but operationally constrained. A one-year wait to grade cards suggested a business with enormous demand and fixable execution problems. Puri said Turner bought it to modernize it with technology, efficiency, and intensity, with the possibility of taking it public again after making the operation more tech-forward.

Parr then pulled up Turner’s Instagram account, natsturner_cards, whose bio read “I love cards & sticker autos.” The account showed graded cards, including a 2002 Topps Chrome Yao Ming Refractor graded GEM MT 10. The detail mattered because Turner was not just a financial buyer. Parr and Puri saw a founder-collector buying the infrastructure of his own obsession.

Puri’s immediate reaction to PSA was envy in the productive sense: when he sees a great business model, he starts asking where else it can be built. The question is not “what else is collectible?” but where a market has enough value, enough information asymmetry, and enough shared incentive to support a trusted grading layer.

He floated human capital as one possibility: a PSA-like grading system for the top 1% of Ivy League graduates, or a more trusted scoring system for athletes, similar to the Combine but potentially extending into youth sports. The conditions would have to be right. All parties would need to want structure. The market would need to be large enough. The grade would have to become trusted by buyers, sellers, or selectors.

Parr immediately moved to physical collectibles beyond cards. Handbags already have this problem. He said he had bought his wife a vintage handbag for $2,000 or $3,000 and was essentially trusting an eBay seller’s five-star profile. That is a weak trust layer for a high-value transaction. A stronger authentication and grading standard could plausibly support more commerce.

Then Parr went niche: vintage denim. He said he belongs to online vintage denim communities where people obsess over details most people would miss. The evaluative vocabulary includes “honeycombs,” the fading behind the knee; the back patch near the butt, including whether it is cardboard, paper, or leather and how it has shrunk; copper rivets and whether they have turned slightly green; hidden versus visible rivets; roping fades at the hem; and chain-stitch hems made on Union machines that are no longer manufactured.

Puri asked whether denim has an equivalent to the Honus Wagner card or rare Charizard. Parr said old Levi’s with a back cinch — “buckleback” jeans from the 1800s tied to miners in California and Nevada — can be worth around $20,000 if found and dated properly. He also mentioned 1947 Levi’s with green pocketing related to wartime material constraints as an object of desire.

The on-screen examples included an Instagram post claiming that Levi’s from the 1800s were found in an abandoned mine shaft and that certain pre-1970s selvedge denim regularly resells for hundreds or more than $1,000. A Reddit r/rawdenim thread showed users debating whether they want fades at all, how naturally fades should develop, and how fabric, wear patterns, climate, denim treatment, and rotation affect aging.

Parr said Japanese collectors are especially serious about vintage Levi’s and that Japanese companies make some of the best reproductions of American denim. He was wearing a pair during the discussion and stood up to show the high rise, roping, and chain-stitch hem. He said he had paid $70 just to have a hem done properly and had spent about $500 on a vintage jacket, though he described himself more as a voyeur than a major buyer.

The denim example was intentionally funny because it is too niche for a venture-scale PSA. But that was also the point. There may be a long tail of markets where authenticity, condition, provenance, and shared vocabulary matter. Some are too small. Some, like handbags, may be large enough. Others may become large enough if the trust layer increases transaction volume.

PSA’s lesson, in Puri’s framing, is that trust infrastructure can be more valuable than the objects themselves. The person who grades the market may earn a better business than the person who participates in it.