Is blackjack worth pursuing a career in?
If you work at Seven Eleven or McDonalds, yes. If you are a well paid professional with benifits, no. Blackjack works best as an investment plan where you contribute to the bankroll from your regular income on a regular basis regardless of whether you are winning or losing. After 10 or 15 years you may be able to start taking distributions.
To make it as a pro you either have to be very lucky at the outset or be willing to sacrifice everything of value in your life for several years. For those who have little or nothing to lose it could be an option. But you should really become a serious amature first. This is someone with a good job who has income from bj over a period of several years that almost equals his day job. He doesn't have to ask for opinions on the boards. He already knows the game, knows and has played all the major gambling markets, and is already well connected with lots of pros and serious amatures.
Or you could possibly get someone to finance your play. But that is getting increasingly difficult since there are so many experienced high stakes players connected to the inner circles that for a new comer it is like trying to get a union job without a union card.