Just because a particular game is beatable doesn’t mean you can get rich at it.  If you’re viewing blackjack as a possible investment opportunity you have three main points to consider – Skill, Bankroll, and Risk.  Each of these factors must be considered before you even begin betting.  Really, a highly skilled player with a small bankroll (say, $1,000 or less) can only hope to make a few dollars per hour playing blackjack, and runs the risk of going broke anyway.  Blackjack is a game to be enjoyed, not a job and certainly not an investment opportunity.