I bought a new toyhauler last year. I bought mine from The Original RV Wholesalers - RV Sales, RV Parts, RV Dealer, RV Super Store Dealer, 5th Wheel, Forest River
and had it delivered to my home. I have been pleased with my trailer and the transaction. I have had 2 warranty issues and both have been fairly handled. I believe I saved ~10,000 by buying a wholesaler. The driver that delivered my RV spent an hour with me on a walk-through/setup. I have had to figure out most systems by reading the manuals. I would buy this way again.
I looked at used units too. The older ones were half the cost of a new ones, but they looked like maintenance nightmares. The newer used RVs cost as much the new one I bought - mostly because people were upside down on their loans.
I found some fair prices for new homes at nearby dealers. You have to shop and bargain and many of the dealers - just like buying a car. MSRP is just a starting point.