1. A method comprising: maintaining historical printing device information from a plurality of printing devices within a non-transitory storage medium of a computerized device; maintaining historical service actions performed on said printing devices within said non-transitory storage medium of said computerized device, said historical service actions comprising printing component replacement and printer maintenance actions; maintaining historical print image quality produced by said printing devices within said non-transitory storage medium of said computerized device; determining which of said historical service actions increase said print image quality and which of said historical service actions decrease said print image quality, using said computerized device; determining costs of each of said historical service actions, said costs comprising prices of components of said printing device and a cost to perform service on said printing device; and outputting an action effectiveness report from said computerized device, said action effectiveness report including said costs of said historical service actions and indicating which of said historical service actions increase said print image quality and which of said historical service actions decrease said print image quality to provide cost/benefit information of said historical service actions.