People definitely use mobile RV repair services, but I see them more in more densely populated areas and I've always assumed they typically get referred to RVers by the RV park - a local, known business. So if you are traveling around, it might be hard to build a reputation and get referrals before moving on. But I am not the best to say, I guess. Been full-timing almost 8 years and have done most of my own repairs as well. Just the way I was brought up. Really the only service I have paid for while full-timing is oil/lube/cooling system and tranny scheduled maintenance.