Actually, we are a very unique case.
I am 22 and active duty military stationed in California with my 20 year old wife. We have no tow vehicle yet and intend to live in RV parks for months or years at a time without moving. Should we get stationed in an area with harsh winters, we don't intend to spend winters living in the RV. However in northern California this makes financial sense and we have always had a dream to do something like this. As we need stability due to my being tied to one area for years at a time, we want something cheap with a good layout. We enjoy the lack of space and purposely chose under 30 feet and love most 26 feet like this.
So we're not the typical full time RVers, who will travel park to park around the continent when we want, we are very tied down. But buying an rv makes more sense than a house in this area. After 4 years of rent I could have bought this RV and 4 years of RV park rent, but I'd have something to show for it.
I appreciate all of your advice though. Another thing we like about RVs is the community, we have met so many great people who love to help us out.