I'm not rich from gambling but you can become rich by gambling with a lot of luck of course. I think if you have this luck you should never gamble anymore because you can only lose it again in my eyes..
Even with luck you cannot become rich with the gambling because yes with luck you may win a huge amount one day but in contunuing gambling its 100% sure that you will loose again while doing gambling or even more than that,anyhow its not possible to be rich with gambling.
Unless if you win in lottery here in my country if you hit the jackpot prize you can be millionaire and i am sure you will stop to gamble if you hit the jackpot prize. so its instant rich.. this is happening sometimes in our life. but not all people are lucky to hit the jackpot prize,