3:2 payouts for Blackjack were gone years ago, but more recently no even money for Blackjack if dealer shows an Ace, only split once for two Aces...not worth it at that point.
The one and only time I was convinced to give roulette a try I lost everything pretty quickly (I mean the small pot I'd set aside for gambling - I'm not stupid enough to keep withdrawing money and bet more than I can afford).
Seems blackjack can be pretty lucrative if you're willing to walk away at the right moment. I seriously doubt it would work as any kind of long term strategy, however. Of course you also have to have the discipline to spend the rest of the night drinking beer and watching your friends get poorer and poorer.