> Still, if I'm a regular somewhere and they are giving me special service, I'm gonna throw a few dollars into the tip jar.

There are some philosophical problems there. The business/servers can't renegotiate the menu like that - if they aren't getting paid for a service and the customer didn't ask for it then there is no reason they should get more money for it.

Also, an observation about how the economics of regulars work - if you are a regular the business is probably already making a lot of money off you. Someone who goes back even a single time earns them 2x as much as a one-time walk in. Being a regular is already a favour to a business even if all you do is order something cheap off the menu. In my experience, when a business identifies that I am a regular they try to make me pay less to keep me coming back.