Exactly, which is why I almost never tip. I'll occasionally leave a tip at Dominos or something if they were prompt in finding my pizza while being really slammed w/ orders, but there's no way it's getting anywhere close to what I'd tip at a place where I'm actually being served.

I'll occasionally leave a cash tip in a jar at a counter order place if the staff were helpful in some way (or the food was especially good), but that's also pretty rare.