For this payoff schedule you can expect to receive a return of 71 cents for every dollar bet. The house advantage is a whopping 29%. While this is a huge advantage for the house, remember that the overhead of keno is also the highest of any casino game.

There is plenty of floorspace devoted to the game, a large number of dealers, and relatively small bets are the norm. It would not be profitable for a casino to run keno at a much lower "take". At least, this is what the casinos say when asked about the high take. While it seems reasonable, nobody in the business has actually offered any proof that this is the case.