1. A method of processing a purchase at a point of sale system, said method comprising the steps of: recognizing in an initial analysis using a computer processing system, one or more items placed on a conveyor system dedicated to handling items associated with a single customer for the duration of said purchase, said conveyor system continuously moving when one or more items are resting on said conveyor system regardless of whether or not said one or more items are correctly recognized during said initial analysis; identifying, using said computer processing system, a single customer purchasing one or more items on said conveyor system; invoicing said single customer in close proximity to said conveyor system in the event all of said one or more items placed on said conveyor system are correctly recognized during said initial analysis; and invoicing said single customer at a remote location with respect to said conveyor system in the event items placed on said conveyor system that are not correctly recognized during said step of initial analysis are correctly recognized during a subsequent analysis.