I met quite a few folks this summer that bought an rv lot as home base. I'd say about half of them or more are trying to sell their lot.
Before you invest in such a purchase, I'd recommend you travel and try out all the different RV lifestyles and see the different parts of the country before making any decision on a home base. It really is cheaper and oh so much more flexible to rent a place for your "home base months". Then if you get tired of it, simply rent a different place in a different part of the country next time.