I think gambling is a broad issue, because whether we admit it or not, there are only a few who win jackpots in casinos. And most of them are losers in gambling. Though, there are also many who win but not large amounts to say.
That's very correct; some of those who hit the jackpot, if a proper account of all their losses is being done, you will see that the amount they won from the jackpot can't even cover up all that they have lost to gambling before they finally hit that big win.
It depends on the kind of Jackpot the gambler won because Jackpot comes with a huge amount of money and except it be for a gambler who is addicted and spends most of his money in gambling or someone who stake huge bets, those are the only people that their winning in a jackpot can't cover up for their losses but whatever be the case, it is good to win in gambling no matter how little the winning is. I have met a gambler who plays gambling on weekly basis and he has been keeping records of his losses each week, he told me that he played gambling for a year and 2 weeks and didn't win a dime so you can imagine such situation of losing for good one year and some weeks, if such person wins a jackpot he will be very happy regardless of the amount he won.
There are also some who just played a few times and won big, covering more than they have spent over time in gambling, but with time and overconfidence, they start giving back that which they have won to the casino gradually without even realizing it, and it will take longer or even a lifetime before they can hit that large win again.
Certainly, There was a day i was in a casino physical betting shop and some gamblers where playing virtual sports games that is programmed by the casino and they were all playing and losing heavily, then someone just walk in to place a bet that was giving to him to stake at the betting shop but got distracted when he saw the virtual sports live games. He decided to try his luck and just on one attempt, he won huge amount of money and told people there that it was his first time. So people can be lucky not to lose too much before they win but the only problems with most people is just greed because instead of being contented with the amount they've won, they will want to make more attempts to win and by so doing they might lose the amount the won initially.