Everybody thinks they can do this, but it simply can't be done. A well financed outfit here in LA started the well stocked white van thing, specialized in rich people only, made a big launch splash and never resurfaced. Gone in a matter of weeks.

A mobile operation will have to charge well over $70 an hour if it's run extremely efficiently, and that's nearly imposible. Every job is going to have unique problems take four times as long as it possibly can, and the customers simply won't stand for that kind of cost. The PFY or friendly neighborhood enthusiast is really the only viable sollution for maintaining SOHO Windows PCs.

I try to avoid fixing Windows, but I still have to do it several times a week. For a well financed business that really understand computers, I'll do it on-site, but for private parties and really small businesses - no way. I'll only do those in the shop. Small customers simply won't stand still for what I have to charge in the field. In-house, I can set it up and pick at it when I have a moment and can do something else rather than wait for installs and reboots. That way I can charge for only an hour or so of work while I might have to charge 4 hours at a higher rate in the field for the same thing. Even so, this is not work I'd do if I didn't have to. Thoroughly unrewarding.