Great way to sucker you in. As a general rule nickel slot payouts are a few percentage points below quarters, halves and dollars. When you consider that on many A/C machines you have the option of playing 90 coins, Its almost like playing 1 coin in a $5 machine and the casino has a higher hold. Couple this with the excitement these people have when they win thousands of coins which add up to very little, these machines will be around a long time. As one little old lady told me I know when to quit...... When i'm broke. Nobody goes home with a bucket of nickels.