Over the last five years or so I've noticed this movement where restaurants think it's cool to make the customer do the work. Wait in line and order, no table service, then walk to pick up your own food cafeteria style and finally to top it off bus it to the trash. Add to that have they charge you the same prices that a table-service restaurant would AND have their payment terminals setup as you describe. So I ask myself every time I unfortunately find myself in one of these restaurants, why would I tip for doing all the work? If I do tip, who is receiving the tip? I'm guessing it's not the people doing the work, i.e. the kitchen staff.