Sure slot machines https://50-spins.com/betsoft-slots/ and roulette are games of pure chance. So there's no room for expertise there. But poker, blackjack, and all kinds of sports betting up offer the opportunity to exercise skill and expertise expert gamblers outperform novices in these games. And their expertise can make them very rich. It's this ability to earn money to earn a profit from gambling that sets the expert gamblers apart from the problem. Gamblers and leisure gamblers both lose money over the long term. The main difference is that they let the problem gamblers bet more than they can afford to lose.