I have to second that thought about the players cards. Even if you don't plan on collecting them many casinos will give you $5-$25 in free play on slots just for signing up. You can run it through a video poker machine and normally end up with at least 75% of the original value. And then somewhere down the road they may send you more bounceback offers. Years ago I signed up for a Harrahs card at one of their riverboats and for some reason got enough free offers that I had seven free nights at various Harrahs casinos around the south and midwest.