Paul In the early 60's when Peter Thorpe first wrote " Beat the Dealer " the first BJ card counting book, Blackjack was at most only 1-2% of the casino gaming space while roulette and craps were over 50%. Because of this book within ten years of the "secret" getting out that BJ was beatable each casino's BJ tables went up over a 1000 %. WHY --- because the people thought it was beatable game. It was and still is if you will spent the time and effort to learn how. In the late 60's and early 70's the house had an avg take of over 15% on BJ because the avg person didn't know how to play correctly. It will take the average person about a year and a half of practice spending about 2-3 hours a day, 5 days a week to become proficient at counting, figuring true count, shuffle tracking, ghosting, picking up tells, initial table evaluation, and a host of other things that are needed to become a professional BJ player. This must be accomplished while learning how not to look or act like a card counter because you can't make money if they will not let you play BJ in their casino.

So very few people make it to that level and the casino's feel they can always bar them. ( Except AC where it is illegal to bar a person. Due to the Ken Uston law suit against all the casinos in AC. They are allowed to take counter measures now against a single individual. Shuffling after each hand or putting cut card so that only 5 0r 10 % of the deck is dealt. Until you leave of your own accord.
The point I'm trying to make is that Casinos love to have games that mathematically play very high--- even if it is 100%--- but the average player plays it at a large disadvantage because of the knowledge, practice, concentration required. A lot of casinos now advertise trufully 99.7% payback on a particular bank of slots. the average VP player ( a guess here ) may only play at a 90-93% level. This is better than a lot of their reel slots that they have a chip programmed to pay 94-95%. BUt people are told by experts these VP's are beatable.