Well one thing that I've noticed is that when I watch the lawn care crews. If you see the owner running a ZTR they seem to be extremely careful, make smooth movements, turns etc. When I see one of their employees, especially out away from the boss they drive them like a bat out of, well you know.. They pop the front wheels, jerk them around, slow down for nothing, and will run over anything thats in their way (rocks, etc.). Even run them into a pond trying to keep from doing a little extra trimming. So how much longer would an owners ZTR last compared to one that is driven exclusively by employees. This has to be a problem getting a good employee that will take care of equipment.