I got a tacoma with a tall camper shell.
I tossed a piece of foam in the back, tacked some fabric for decoration, added a hanging lamp, and that's it. I have a pelican case I keep my laptop and some stuff in, but the rest of my crap stays in plastic tubs.
I don't really want to spend time tricking it out, because the point is that I want to be out doing stuff, not fabricating a home.
I've camped out about 10 days so far this year and plan to increase that to 100% by the end of the year.
I just do it because all I want to do at this stage in life is play music and rock climb. I couldn't see doing that if I was trying to go into an upswing on my profession or build a relationship.
The point is to have a place to crash so I can stay on the road with less hassle... it's much nicer to not have to drive home after a gig or to wake up and go climb without a commute or a campsite to worry about.
I also know a lot of folks living in RVs, and I don't think that the sprinter van looks like an improvement over a commercially produced motorhome/ 5th wheel/ trailer.