I think the cost of resetting the service light depends on your relationship with your dealer. If you support your dealer, buy things from him he is more likely to do it for free or a couple of dollars. It is not a 2 minute procedure. Once you hook up the DDS there is a series of checks that must be performed. Takes about 10 minutes. So add in the time to roll the bike in the shop etc ect then your light take 15-20 minutes. Dealer has to pay the tech, the rent Ducati for the DDS and license and you can see why they may charge a couple of dollars. I have no problem with that. I do have a problem if the dealer refuses to turn the light off if you do your own service. My dealer MotoUnion in Milwaukee has always been great about stuff like that.