At one place, we had a potluck where clearly some people went way above and beyond so we decided that if you don't want to cook, you can just pay USD 20 instead

At one place, we had a potluck where clearly some people went way above and beyond so we decided that if you don't want to cook, you can just pay USD 20 instead. Those who cooked and baked were clearly spending way over twenty dollars each anyway. That's not a potluck! Anyway, nobody complained anymore after this one change.