sorry to say, but unless you arent too picky about the way your touch ups look, id save your money. molbile touch up guys, unless you are dealing with a guy with several years experience, (which there arent too many of, because if they were good enough at what they were doing they'd be working at a decent bodyshop) you are usaually dealing with a young inexperienced guy who most likely wont be doing the greatest job. mobile touch up consists of some guy mixing a close enough color to what you have on your car and spray painting the damaged area outside. this exposes your fresh paint to the outdoor elements. taking it to a good bodyshop the chipped panel is repaired and repainted using a computerized paint mixing system that qaurantees color match, while being painted in a paint/bake booth. you might as well do it yourself in your driveway and save the $200. i dont know about you but i wouldnt want my $30.000 plus car to have an airbrushed paint job.