Well, one year (or less) old coaches are fairly rare, so in that sense its a find. But you didn't mention the length, floor plan, number of slides or any other salient features, so it's hard to evaluate the pricing. The MSRP on a 2012 Georgetown XL ran from about $126k to $132k and you could have bought it new for 20%-25% below that, so $85k for a year old, used one is not actually a steal. But if it suits your needs, it is probably a fair price. Of course, you can (and should) make a lower offer and see where the negotiation goes.
Former owner of 2004 American Tradition and several other RVs
Home is in the Ocala Nat'l Forest near Ocala, FL
Summers in Black Mountain, NC