That's a good question, and the answer is different for each user. I think people should quit gambling when they stop enjoying it, simple as that. If gambling is something that you don't enjoy anymore or something that represents a problem in your life, then you should quit gambling, don't wait until the big win to quit because it's easier for you to lose than getting that massive win.

A big win will make us want to gamble more, and a huge loss will make us stop and walk away.