Penny Slots usually have 20-25 lines and sometimes 50 lines. The dollar slots, on the other hand, have single pay lines in most cases. If you want to spend less money while activating more pay lines, you know penny slots are the best choice for you. However, penny slots do not offer you as frequent returns as dollar slots. A single pay line dollar slot can offer you a better payout than what a penny slot is offering at max. Even though you are spending more, it makes sense to win bigger whenever you win rather than wasting time winning slowly at the penny slots. But if you just want to enjoy the game and spend your time receiving free drinks at the casino, penny slots are meant for you.