Slot machines are very popular and many people enjoy playing them. While brick and mortar casinos have been a sure hit in the past, today online casinos are making slot machines even more popular. As a matter of fact, slot machines are the most popular ways to play in the casino. A good deal of these slot machines is referred to as quarter slots. These slot machines require a quarter to get a spin. If a machine says it allows a five coin maximum then you could wager $1.25 per spin. This can be a costly wager for many people but you need to be playing the maximum in order to win the big jackpot. Quarter slot machines do pay out higher jackpots. But the truth is that the machines that accept the higher bets usually offer the best payouts. This means that nickel machines pay back more than penny machines, quarters pay more than nickels...you see where this is going, right?