I agree with those above that I don't really see a problem with this. It's not like the terms of the deal are hidden in some tiny fine print somewhere. It doesn't take much to find out that there's a minimum purchase, and most people are very used to this practice so it's not like it will come as some kind of surprise. Plus I also question whether it's in good taste to air this particular gripe aimed at the restaurant industry at a time when they are in such bad financial trouble due to the pandemic that many restaurants might not survive. I'd gladly be a little "overcharged" in order to support them, and I'm not going to quibble over something that's pretty much standard even under the best of circumstances, especially right now.