Using Square is easy and has low fixed costs. iPad for under $400, iPad stand for $100, and you don't have to fuck with complicated 1990s credit card processors.

No doubt, it's just odd it's all coffee shops and not other small businesses like Pizza, books stores, etc...

agreed - the few coffee shops i frequent in Chattanooga are Square users.

as well as my haircut place, a few sandwich shops, and a drink spot.

I feel like the Starbucks is catching up with their more efficiently operating 'local' competition. But its still a great move.

The first place I ever used Square was a Pittsburgh coffee shop.