Aldi Doesn't Have Low Prices. It Has a Machine That Can't Charge High Ones.

Walk into an Aldi and the first thing you notice is what isn't there. No eleven brands of ketchup — one. No deli counter, no bakery aromas piped through the vents, no end-cap display some snack maker paid to rent. Boxes sit on pallets in their shipping cartons. You bag your own groceries. The whole store carries roughly 1,350 different items⁶, where the supermarket across the road carries tens of thousands. It feels like a store that ran out of money. It is, in fact, a store engineered down to the bone — and the bareness is the point.

The official story is that Aldi has low prices. That framing quietly suggests price is a lever — something management sets, and could raise if it wished. It isn't, and they can't. Aldi has built a machine that is structurally incapable of charging supermarket prices, because every part of it is a cost being removed before the price is ever named.

The price isn't decided. It falls out of the design.

Here is the thesis in one line: Aldi's hard-discount pricing is not a strategy bolted onto a grocery store — it is the store. Start with the assortment. About 1,350 items⁶ instead of thirty thousand isn't a smaller shop; it's a different physics. When you sell only one tomato ketchup, you buy that ketchup in volumes a full-line grocer can only dream of, and volume per item is the single most powerful lever on unit cost. Now make roughly 90% of those items your own label³ rather than national brands, and you delete the entire marketing tax baked into a famous name — the advertising, the brand premium, the slotting fees. The product Aldi sells is tested to meet or beat the national-brand standard³; what's stripped out is the cost of making you recognize it. Put a no-frills store, self-bagging, and pallet-stacked shelving on top, and you have removed labor, fixtures, and handling at every step. None of these is a discount. Each is a cost that was never incurred. The low price is just what's left when you add up everything that isn't there.

Why a supermarket can't simply copy it

A full-assortment grocer looks at Aldi and sees an obvious move: just lower prices and stock more own-brand. But the move that's trivial for Aldi is self-harm for them, because the thing Aldi removed is the thing the supermarket lives on. Carrying thirty thousand items is not waste to a conventional grocer — it's a revenue model. The brands pay to be there: shelf placement, promotional money, the marketing premium that hands the retailer margin. Strip the shelf down to ~90% private label and you don't just change the price tag; you walk away from the slotting fees and brand dollars that fund the whole format. The choice everyone offers as the supermarket's defense — vast selection — is the exact ballast that stops it from chasing Aldi down. They can spin up a discount banner on the side. They cannot turn the mothership into one without scuttling it. That is what makes the doctrine self-reinforcing: the more Aldi commits to the stripped model, the cleaner its costs get, and the more it would cost a rival to follow.

The scale is not incidental — it's the engine feeding the engine. Aldi runs over 13,600 stores across 18 countries¹; the Süd group alone operates more than 7,000 food stores in 11 countries with over 180,000 employees². That footprint is what makes the volume-per-item math work. And it shows up in growth that doesn't behave like a mature grocer's: Aldi UK and Ireland posted record sales of £17.9 billion in FY2023, up 15% year on year, with £399 million in profit after tax⁵. The combined global business is privately held and doesn't publish consolidated accounts, but industry trackers put the 2023 turnover near €112 billion, up about 8.7%⁴. A model this stripped is supposed to win on price and lose on growth. It is doing both at once.

Isn't this just selling less, and isn't choice the thing shoppers want?

The fair objection is that a 1,350-item store is simply a worse store — that real shoppers want choice, and a single ketchup is a limitation dressed up as a virtue. There's truth in it: Aldi is not where you go for the obscure import or the fourteenth cracker variety. But the doctrine reframes choice as a cost the customer pays for in price, and bets most weekly shoppers would rather have the lower number than the longer aisle. The evidence is the curation working in Aldi's favor: the assortment is deliberately built to be a customer's 'first shop,' not a top-up trip⁶, and the share gains suggest enough households agree. The honest counter is the ceiling — a format this lean has a natural limit on what it can be to whom, and even Aldi has let the SKU count creep upward over time⁶. The risk isn't that rivals copy it. It's that, chasing growth, Aldi slowly adds back the very items the arithmetic depends on removing. The doctrine is powerful precisely because it's disciplined; it stays powerful only as long as the discipline holds.

It helps to remember the lineage. The Albrecht brothers split the business in 1960 and ran their halves apart — Aldi Nord and Aldi Süd financially and legally separate since 1966 — and the popular telling pins the rupture on a fight over whether to stock cigarettes. German reporting has long argued the real cause was simpler and more telling: two brothers with fundamentally different ways of running a store⁷. The cigarette is the kind of detail people remember; the discipline is the thing that mattered. The same is true of the prices. Shoppers see a number and call it cheap. The number is the easy part. The hard part — the part nobody can copy on a whim — is a store built so that it has nothing left to charge for but the groceries.