Quoting from others:
Start used. Keep the price down to bare minimum. It is a lot easier to sell a used trailer loosing maybe a few hundred dollars in the process than trying to sell a nearly new one loosing thousands of dollars if your desires change. Which they likely will judging buy the quantity of decent uses ones on the market.
Again quoting:
This is really good advise when starting out. We found a floor plan we liked but saved a ton on our first RV because we went with a used one from a private owner.
Even though we were thrilled with it and thought we would probably keep it for several years, that didn't happen. In a year we traded it for a new bigger one.
The good thing was the dealer discounted the new unit plus allowed us more than we had paid for the used trade-in.
I would decide what you want to start with then locate any late model used ones. We used Craig's List to locate our used unit in a neighboring state.
This would be my advice also.
You can find dealer who give a warranty for nothing to be wrong with a used RV. I had a dealer let me take a travel trailer for the weekend once just to check it out. But most of the time the things that need warranty work show up in the beginning, once they are fixed your ok for a while.