For instance, you can go to the Hard Rock Casino in Las Vegas and for $20 you can purchase $30 dollars worth of
No Cash Value chips. So you get 6 chips with a $5 value to them, and little cards that show you how a game is played (roulette, craps, blackjack) It encourages people to learn a new game I guess. You take the chips to your favorite game, and you bet with the chips. If you win, they will replace your wincard chip with a real chip. I buy them and go home. At the Hard Rock you can only buy the wincards once a year. Other casinos have different rules. I went to the Avi Casino in Laughlin and I got 15 $1 win-chips for $10. And there I think you can buy them everyday, or every week, I cannot remember. I put a link down there to their websites

Hope that helps