Definitely it is the nature of the business. No matter the losses gamblers never quit they always have the assurance that they would win and that losing is something that must surely happen along the line. So it doesnt hurt them as long as they will also win massively. Also it depends on the amount the gambler use to gamble. If it is something big then he has to reduce the weight of it. I cant find it interesting when a gambler continue losing with huge sum of money expecting that when he wins it will be a very huge sum of money. Sometimes, when you calculate the cumulative loses and then compare it with his wins. It may end up that he had acquired more loss.