The basic idea is that you either have stock, preferably founder levels from 10% up (which is itself a lottery ticket), or you hold retiree bingo cards. The retirement home provides the cards for your entertainment, but the real owners of the establishment, the founders and early investors, know the only way you can earn the big prize is at their expense, so they have a vested interest to see you fail - and they are the ones printing the bingo cards and setting the rules.