I have been full-timing for over 6 years now. Originally I bought a 36 ft. Airstream Class A no slides and within a year decided that it wasn't going to be big enough or have the storage that you need full-timing. Did my research and homework, finally ended up buying a 2002 Monaco Windsor 40ft. PBT triple slide and frankly would not change or upgrade for a different one. Had an opportunity to buy a 42 ft. 2003 Signature for way under value, husband died and wife just wanted to unload it. I walked through it, looked at the inside and outside storage areas, and said I'd rather keep what I got. The only time I would have been interested in changing was this past fall when I attended the October Pomona RV Show, I went through a 2010 Dynasty and said this would work, however $500,000 , I don't think so!
Floor plan, storage, what you need versus what you would like are all important considerations.
Good luck and do your Home Work first before you charge out and buy something that doesn't end up fitting your needs.
Dr4Film ----- Richard.