Proximity, convenience, habit and time generally incentivizes people to behave in certain ways. I have a supermarket that I go to only because it's 50m away fro

Proximity, convenience, habit and time generally incentivizes people to behave in certain ways. I have a supermarket that I go to only because it's 50m away from where I live. Its selection is marginally worse and if there were a better one right next to it, I'd go to that instead, but there isn't. The next one is just enough distance/time away from my regular route to work that I don't feel it's worth the effort unless there's something really specific that I need. This is the kind of calculus that everybody uses to decide where to buy groceries. In a Google "town" with conveniently placed Google markets with a sufficient selection to cover most or all demographics and even a marginally higher cost would manage to capture the vast majority of residents.