I traded in my 2nd TT when I bought my 3rd TT. I was happy with the transaction. I probably could have sold #2 privately and got a few more dollars but the time/hassle/energy was not worth it to me - the dealer gave me a hefty discount off #3 (I bought in November in PA);
All in all walked away a happy camper (literally!!!) - went camping the minute I picked up #3; I've been looking for a new camper and I'll probably go down the same route, so far I've met a couple of dealers who I would do business with.
Gerry