The chances of hitting a progressive jackpot can sometimes be one in a million, so it makes sense that the massive reward will not be paid out too often. Depending on the winning amount and the number of casinos that partake in the prize, players may need to wait anywhere from a few days up to a few years. That’s right. Some games, like RealTime Gaming’s Shopping Spree, pay out only once every four years! On the other hand, many machines will give gamblers a smaller jackpot every week.