Methods and apparatus for auctioning an item via a gaming device are disclosed. The methods and apparatus enable a gaming device player (e.g., a slot machine player) to select one or more auction items the player is interested in bidding on. As the player plays the gaming device, a portion of each bet...http://www.google.com.hk/patents/US7905777?utm_source=gb-gplus-share專利 US7905777 - Methods and apparatus for auctioning an item via a gaming device
