I was doing mobile for about 3 years. I made pretty good money. I really enjoyed it once I get my license straightened out I think I might get back into it. But if you do decide to do it I suggest making that your only thing. Cause running a shop and doing mobile would be like burning a candle on each end before you know it your burnt out. If your trying to get into it I suggest making a 1, 2, or maybe a 3 man crews that only does mobile or hire a manager. But I really liked it cause there's a lot of perks. it never gets boring, with the change of scenery and quick pace, it gets exciting. And the sense of freedom is awesome. There's Also no overhead so the only expenses are mostly gas, food, cellphone, cleaning supplies, occasional tool here and there, and maintenance on your vehicle. Everything can be a write off that helps. It makes it convenient for the costumers, that in return compells them to want to tip. Granted a shop makes things easier but it's still very possible to complete any job no matter How big or small...