people are addicted and bored with their lives, or they win once and believe they can do it again and get used to losing for years and years
No doubt gambling sucks so badly and that is true people are not satisfied with their life style, this kind of win when someone made very big amount so quickly and this made him believe he has very good skill and luck, this thing keep him on trying again and again.
Not all people are not satisfy with their life style, people who are addicted in gambling they are the once who are really not satisfy in their life style, because for sure they gamble because they want more, or they want to gain more profit. Yes, I also gamble sometime, but I am just trying my luck and I don't use all my money to gamble and I don't expect that I can win big. I don't want to bet big amount.