Just open the back with a key and manipulate it to pay off to certain customers or to increase payoffs on certain nights. There is no disclosure about what the rates are. But payback rates can't drop too low. Most West Virginia bar owners set payback rates between 65 percent and 75 percent. That can become a lot of money.
Experts say computer video games are the most addictive form of gambling.
The games Video lottery first came to West Virginia's tracks in 1992. Video lottery's portion increased from 17.2 percent to 43.9 percent of all revenues between fiscal years 1995 and 1998 for three of the state's tracks. It's a little harder to lose money on video machines at the tracks. Each hand takes a few seconds to play. Gray machines also allow players to increase bets after a hand is dealt, before discarding cards on a redeal.