For people who seem to always be unlucky at the regular casinos but enjoy the thrill of gambling with their cash.
You pay $10. to enter the casino and play for 2 hours. You use your cash to buy chips and get a receipt so you will get back all the thousands of dollars you spent on the chips that you lost gaming. In the unlikely event that you won anything you simply just give back the chips but then you could head for a real casino if you think you are on a roll.