The hidden benefits of the program is that the machine gets a thorough cleaning inside and out in thier indoor wash-bay; - a feat I can't achieve merely because it's usually well into winter by the time we finish corn.  Secondly, it gets a comprehensive inspection and any field-changes or updates can be done at that time as well.  Third, we get a "loaner" (or demo machine) if a major breakdown occurs as well.  All for about $500 Canadian; - about 12 bucks US!  ;-)  I might add that I also do most major repairs on my farm as well, having apprenticed as a Heavy Truck Mechanic before taking over the family farm.