Loss Leaders
Featuring Jim Sinegal
Costco has sold a hot dog and soda combo for $1.50 since 1985, loses money on every one, and that is the entire point. When Jim Sinegal co-founded the company, he priced certain staples permanently below cost to train members to associate Costco with value so deep they keep renewing the membership and keep loading carts with high-margin electronics, furniture, and tires on the way out. The loss leaders are marketing spend that doubles as inventory. Amazon ran the same logic with the Kindle, selling the device near cost to lock customers into an ecosystem where it captured margin on every book for the next decade.
For founders and operators, the loss leader is a magnet for the one customer who can quietly destroy it: the cherry-picker who buys only the cheap thing and never converts to anything profitable. Costco neutralizes them with the fee gate, the bulk sizing, and a store layout that marches you past a thousand high-margin items to reach the food court. The model only survives when you control the context tightly enough to capture that second purchase. The specific mechanisms that make a loss leader pay off instead of bleed you dry are what the app holds back.