I've been trying to sell my 2008 Georgetown XL 378TS with less than12,000 miles on it for a year now. Had it on craigslist, ebay about 3 or 4 times, I even had one of those RV site that advertize we'll get it sold, no luck yet, and I'll willing to take that 15 to 20k hit on it.
That's 15 to 20k less than what I owe on it. My sell price 69k I owe 89k
Mine does have a lot of ad on's that I put in, but New ones are selling for not much more.
Easy to buy, Hard to get rid of. You have to really be sure it's what you want before you buy. Good Luck