[Andy B]

Canterbury Park takes 10% off the top of the jackpot drop to cover administrative expenses related to the jackpot. I'd be surprised if 1% didn't cover it, but whatever. They take an additional 15% which goes towards promotions--drawings, Aces always win, the free-roll on Sunday mornings, etc. I think most casinos do something similar. I'd be somewhat surprised if there were a casino that paid out 100% of the jackpot drop.