That's correct because we are gambling to spend and not to save.
We are always advise to gamble what we can afford to lose because most likely our experience will be more losing than winning, that's how it works in gambling.
Since we lose more than winning is gambling, we need to find a plan where our loss is minimize and we are able to make some decent profit out of gambling. Most gamblers do not take out the profit from the games and re-invest the profit in next game, which results in an overall loss. We should keep booking the profits in gambling and keep them aside.