I run a small group of vans on outdoorsy. Experience has been pretty good. Started with a 93 SMB and added a 98, 2006, 2001 coachman and now have 3 transits. You will be dismayed by the wear and tear and damage that the van takes over time. Our vans run about 20,000 miles a year, so they get used a lot. You need to be able to divorce yourself from the small wear items. Also, you need a good mechanic as well as a body guy and an RV systems place. Problem is: van will come back with something broken and the RV place is booked out 3 weeks and you have someone else picking it up this weekend. So it's a lot more work that I originally though and everyone treats it like a rental car. They aren't deliberately abusing it, but they aren't caring for it the way you do.
Good luck out there!