According to some embodiments, systems, methods, and/or articles of manufacture are associated with operating a gaming device having a flat rate play session or contract costing a flat rate price. The flat rate play session or contract spans multiple plays on the gaming device over a pre-established...http://www.google.co.uk/patents/US7503851?utm_source=gb-gplus-sharePatent US7503851 - Budget-defined flat rate play contract parameters
