I don't think there are any valid reason to continue gambling as it will not make people rich but it will just make people lose their hard earned money. For me only people that still thinks they can win good amount are still playing
some of them can certainly target victory because they decide to continue gambling. but not a few people who always want big wins can have an impact on sustained losses because the greed they have can eliminate control while playing
I already see people who want big wins in the gambling will end up in losing money because they never think to make a limit of their money and still playing until their money is gone. That will impact them to keep playing the game, and that will be their reason to continue the game. So if you don't want to lose your money, it's better to know what is your reason to playing gambling.