Those people who are hoping to hit the jackpot has the biggest problem in gambling, I don't even hope for hitting it but I know there are some.
They need to hit they head in the wall and so that their minds will be refreshed that their hope is going to be null in the end.
Addiction in everything is the hardest thing for a person to fight for because they can't even avoid it easily even they want to.
As long as one aim to earn something from gambling, then it is a problem because gambling is not made for that purpose. If you just play these games without expecting any profits once in awhile, then you will enjoy those games and will not lose a lot of money in gambling.