you cant eat at the tables in vegas so people that play long hours have no choice. its a lousy deal but there is no real solution. but what really happens is that its mostly the better players that go for long times and thats good for you. also the game gets a little shorter and you get more hands out which is more money per hour for you.

when the bad players leave you can at least judge it and go to eat then as well. and if you didnt allow them a long time they would quit and not come back.