Yes there are lots of dumb casino gamblers out there but the days of the mob having fixed machines and people not really understanding the rules are long gone. The big "attraction" for the 6-5 payoff if that it is a single deck game. You have to know a bit about BJ rules to even know that there are advantages to a single deck game. Look at how many people are sitting at those 6-5 tables. I would say not a lot of the tables are full. I know you won't see me at one. In fact I doubt that they will be around for long. If the casinos keep screwing around with the few games where you won't "lose your shirt" then they will start to lose customers and may as well eliminate the pits. Then where will the whales play and would they even continue to visit?