I believe you, there are more cases of defeats compared to those who achieved. a little percentage of lucky gamblers who win the jackpot and few of them do manage to walkaway with the money and use it to accumulate more, though we heard cases that those who manage to win big amount of money lead their ways to gamble back and lose everything.
We have some gamblers that likes going low when it comes to taking risk, they fear alot because they were overwhelmed with the doubts of loosing already even right before playing games, while some have developed a thicker skin in taking risk, they enjoy doing such with every conveniences, everyone want to play and win but not everyone will win, but i pity those whose ultimate desperation is to make a win by all means but at the end they still loose, winning a jackpot is an occasional thing that comes with season.