The big gamblers do it for the thrill not to win some extra money. Big gamblers are already millionaire due their business, they just wan tto have some fun. For them to lose 1000 dollars is like for us to lose 1 cent, it means nothing.
gambling is not problem, problem is you never satisfied what to get,.
So keep on gambling and then lose everything and then you blame gambling. If can control yourself or may be not involve in gambling, thing I am sure will always stay in profit no matter what you do.