Firstly: I can't do what those painters did..................... Learn on someone else's truck.
Secondly: If I paid $3000-$4000, I don't believe I would expect not to have some orange peel and some anomalies.. I don't think I would expect to read the date on a penny in the reflection. I would see a few of the persons paint jobs.
Thirdly: If they say "Who painted that?", they could be impressed with price vs looks. I have never seen bad work and asked who did it.
Fourthly (if that's a word): I can't convince myself to try it because I can't paint an old chair.
BTW: what about a Wagner Power Painter?

I have a gun, an 80 gal compressor and some epoxy primer. I just can't "pull the trigger" if you know what I mean. I always read on anything I'm getting ready do and it really helps. In the case of painting..................doesn't help.