Has anyone every done a study to determine about what percentage of people who go to Vegas and gamble leave ahead. I am speaking strictly from a gambling point, escorts, booze and other fun things not considered. I am guessing that a very small percentage of people who go to Vegas leave with more than they put down at the table or machines, my guess is 15% leave ahead. I think that it is that low because most people play slut machines/you will almost never win, and most people who play other games do not know how to play so they mostly lose. And most important, very few will quit when they are ahead.