We've got 3 Kids around 11, 1 dog, an old van and a newish Subaru wagon.
A new van is the default purchase, but most of the time I just need a commuter box. For our epic family road trips an RV might be cheaper and better.
So it occurred to me we need a timeshare RV. These days, to think of a business is to discover it. Turns out, RV Timeshares exist.
I don't know how well they work. There are all sorts of perverse incentive/tragedy of the commons problems in the timeshare industry. I expect they've been a fringe industry.
That's likely to change as we near Peak Oil  time and as the Trilateral Commission  prepares to implement a Carbon Tax. My family doesn't need a van most of the time, and when we do need it a camper/RV combo would be preferable. If gas were more expensive a market would develop to provide RV type vehicles -- and I could buy a commuter car.
We just have to wait.
 Yeah, it's coming. We'd see gas over $4/gallon now if not for the fact that the economy of the industrial world cratered. Given the way things are going the Great Recession will slide right into Peak Oil territory, in which case we'll just call it GD II.
 I was a member! Or at least I got their mailings in College. Maybe if it'd been less chatty I'd be a member of the Great Council by now. (PS. This is a joke.)