Dyepaintball12 said:
Does anyone on this forum actually play Blackjack professionally as a job?
Yes, but only part-time. That is, I don't play 40 hours a week, or even 50 weeks a year. The rest of the time I spend handicapping thoroughbred, harness, and greyhound races.
Diversification is as good a business strategy in blackjack as in any other type of enterprise--it evens out the rough spots. Earning a profit from one kind of gambling is just like earning a profit from another kind of gambling--it is ALL good.
The quickest way to distinguish the amateur from the professional blackjack player is to ask them what they think about Texas Hold'em. If the response is, "EEEwwwww, I only play blackjack," you can pretty well tell you have found an amateur who plays blackjack primarily as a hobby, rather than as a profit-making endeavor. Conversely, you are as likely to find professional blackjack players shooting craps, playing baccarat, or handicapping horse races as sitting at the blackjack tables.
Why? Because the successful, professional blackjack players are the ones who understand that the easiest way to get barred is to ONLY play blackjack. The best have perfected the "high roller" persona that enables them to be welcomed with open arms in every casino, to win large sums playing blackjack, and to leave the blackjack tables with stacks of chips while smiling pit bosses look on benevolently.
Think about it. Baccarat is close to even. So are craps. In a half hour of furious betting (done competently, of course), a player should still be even, or too close to worry about. That player has also created a persona that violates the expectations of almost every pit boss looking for counters.
Conversely, try "wonging it" in an Australian casino and see how long you last. Or in most Vegas casinos, for that matter.

Good Luck