I'm not sure. One time I was at a casino playing DD, and there was this seemingly intelligent guy I was talking to next to me. He told me he was considering going over to play a 6:5 SD game, and I told him no don't do that, explained exactly why, and he seemed to understand.
I got up to go to the bathroom, came back, and there he is sitting at the 6:5 table with a wide-eyed grin. We AP's are a rare breed, don't ever assume a muggle can or will understand and believe what we tell them.
Some casinos are losing the 6:5 games though. From what I see they don't attract high rollers at all. They'd probably be better off with a bank of slots instead of the 6:5 game but that doesn't help us either. I fear the spread of no-risk, no-work slots more than 6:5.