The cards are for rewards like free rooms and meals. I used to make enough playing positive expectation video poker to pay for my flights and as many trips as

The cards are for rewards like free rooms and meals. I used to make enough playing positive expectation video poker to pay for my flights and as many trips as I wanted as long as I played 8 hours a day. I got many free rooms and meals as comps using cards with a girl I'd take with me. Sadly too many people figured out how to play positive expectation and make money and the paytables have changed to where it's not as easy as it was 15 years ago.