Not really. I always feel i gave all my money to them everytime I go gambling. Its more often that i lose than winning happily, I just went there to please my self and enjoy. Gambling is really not for me and I find it in a positive way. In this I can prevent myself from getting addicted unto it. Self control is the key.
If gamblers lose more often then those gambling sites may disappear soon or later because those gambling sites run so many promotions to attract so many gamblers not to distribute their money instead they want to make a profit from their business. For gamblers, they are giving excitement and fun and they are making money. We gamblers got a chance to make money only if we are lucky. So it is better not to gamble for making a profit because it may lead you to addict to these games and in the end, you may lose more money in gambling.