I think I may be able to shed some light on what this guy is trying to do (not that I agree with it). I quickly scanned his list and what I think he is doing is charging more or the $40.00 pr/hr for vehicle that are either very expensive or a specialty car. For example, We all know that a yukon and an escalade are essentially the same vehicle but one costs significantly more than the other and holds more prestige to own. The owner of the more expensive version may be more inclined to pay a little extra as an ego boost for him/herself because their vehicle is "better" than the lower priced version. He may also be trying cover his *** in case he screws up something on a more expensive or specialty car. Just throwing it out there - what do you guys think?