There is a reason why blackjack is the most popular casino game. If you are exceptional at math skills, you stand a good chance to come out ahead - even long term. Yes you can beat the house, but casinos are pretty wise to somebody actually winning consistently as a result of counting cards and skewing an advantage for the player. You might have heard about Andy Bloch (and some MIT buddies), one of the first WPT final table participants who was actually banned from certain casinos for playing blackjack.