I was just in Atlantic City this weekend and kudos to all of the Harrah's properties there that are all now offering all of their shoe blackjack games at 3 to2 for blackjack; even down to the $10 tables.
I didn't realize they ever stopped offering those.. I was there in December, and even the $1 tables had 3:2 BJ, though you pay a quarter commission.
Showboat and I think Bally's had only been offering the 3 to 2 in their high limit area when I was there in January after they had closed the Wild West, instead of on all thier games.
It wouldn't surprise me if they were testing the waters for 6:5 in those casinos. While Bally's rarely has less than $5 mins, Showboat occasionally does. My guess is they learned very quickly that you can't undercut competition in Atlantic City, like you can in Vegas.
Ameristar KC tried it one time. They had two tables, shoe games, that paid 6:5 but were $5 tables all the time. Problem was during the week, they had $5 3:2 games, so while they got action on the weekends, they really didn't get any during the week. Eventually they took them out. Harrah's still has single deck, which of course, pays 6:5... but that's a little bit different. (Not great, but different)