Oh my gosh that is very big amount of money it cost around 400,000 dollars to the current value of the bicoin but the amount they bet is very high than his won and that is risky and once they lose and he will cry for sure. In one bet that is very big amount. But he is still lucky but incase I have that amount of bitcoin I will not bet all that but I think he is millionaire or billionaire because they have that amount.
So you would stop gambling if you won mere 400,000 dollars, I know that the money is huge though but at least if you are a passionate gambler, you will not stop gambling for any amount, you could at least even hope to win more, this is the difference between people who have passion for gambling and those who just gamble because everyone else is doing it
I think the reason why most people dont make it big in gambling is because of these kind of mindset, they have already planned in their minds to stop gambling once they win big money, so winning would now be far from them. It better to plan to remain in the game no matter the amount won.