I will stop gambling if I won a lottery worth few millions on in casinos where I get the overall profits in few hundred bitcoins.

Sounds too much right but this will be the mindset of every gambler that is why people who won huge money also keep continuing.Greediness will never get satisfied...
Sure if this happens that I too will quit the gambling. Quitting after winning a few millions jackpot will mean that we can have an early retirement with no tension of earning money for the rest of out lives.
But in reality no one wins this much big amount and it is like a unrealistic dream which may never ever come true.