if the gambling game is not just based on pure luck like poker and sportsbetting, then you have really a good chance of earning big. But if the games is based on pure luck, then you will really have the potential of losing all of your bankroll in no time.
Here people are discussing investing on casino bankrolls to earn profit along with the site, not gambling directly. I don't fully agree that if you gamble on skill-based games you will not lose all your bankroll because there are many people who lost a lot of money in sports betting and in poker games because those games also need some luck to win.