Comment by al_borland

Movie theaters have a similar model. The movie gets you in the door, but it’s very low margin. They make almost all their profit on the concessions.

While I can count on one hand the number of times I walk into the store at a gas station in a given year, I know others who buy things on a daily basis, to the point that they’re on a first name basis with everyone there and the employees start asking questions if a few days go buy without a visit.