This is my first character, so I don't have any frame of reference to say how much easier it is with a 10 luck. I do know that I busted my first casino (The Tops) in about 10 minutes.
I bet max on every hand, and basically what I do is double down on any hand in the 10-13 range. 90% of the time I do this I get 20 or 21. Every single time I have double downed on 11 I have gotten 21. Every single time.
If I don't start with a hand in that 10-13 range, I simply hit until 18. I lose maybe one hand for every 4 or 5 played. Easy money.
It is impossible to lose in Blackjack. The slots are somewhat forgiving, roulette sucks though. But blackjack...oh man. I was doubling down on my splits, hitting on 17 or 18 with no hesitation, and I just could not lose. It was a push or loss maybe 4 or 5 times out of roughly 20 hands.
After that, I celebrated by going to the Silver Rush, popped a stealth boy and robbed the place blind. I kept a few choice items and sold the rest of the stolen goods back to the store.