I am new to the game but am almost certain from my time at the tables that 90% or more of players have no idea that it is better for the dealer to stand on 17, would misplay surrender if it were offered, and don't care about the number of decks at all (although I do know many plops hate 6:5, no DAS, and CSMs because these are more obvious).

Now I do understand why decent pen is offered, and maybe understand that some might want to play pitch games, but for example why even have a 6 deck game when 8 decks is more hands per hour and much easier to protect against APs? Are there markets in this country where basic strategy gamblers will seek out the best rules? Just seems like such a small percentage of players I see at the tables.