Ah, good old expected value. Remember kids, the reason why gambling in slots or doing the lottery is stupid is because the expected value of winning the lottery or slots is significantly less than the money you put into it. The probabilities are essentially set up that way. Some people get lucky, but most of them don't, and the amount that don't is more than enough to pay for the few that do. It's why casinos can make a profit or why state lotteries earn more money than what they lose when someone wins.