In accordance with one or more embodiments, an account is established for a player of a gaming device. The balance of the account is increased if a predetermined condition is satisfied. An example of a condition the satisfaction of which may result in an increase in the balance is a player's obtainment...http://www.google.de/patents/US7416485?utm_source=gb-gplus-sharePatent US7416485 - Methods and apparatus for managing an account to fund benefits for a player
