In my opinion, owning an RV can only be one of 2 things: A lifestyle, or a hobby. Nothing else.
If you buy one for any other reason, you'll probably be dosappointed. The entry fee is very high for just purchasing an RV, the extra cost of fuel and everything needed to outfit a trailer generally offset any savings over a hotel.
If you're looking to save money, I don't think an RV will do it.
That said, many people do full time RV. It's their lifestyle and wouldn't have it any other way. If that lifestyle is for you (and it's a unique one) I'd try hitting up the full time RVing forum here. They may have more advice.
In my area the natural gas industry is booming, new wells being drilled daily. Workers stay for several weeks then move on to another area. Our area is very well equipped for them staying in RVs. Many people have even built lots next to their homes to rent out to workers who stay in RVs. They generally have very large 5th wheels ($70k+), with 1 ton trucks. They often travel with their wives and young children, as they advice not here more comfortable in an expensive 5th wheel than an average hotel (which there are very few around here). They often spend $700 a month on a payment of a 5th wheel, but to them it's worth it.
