I would agree, the dealer is blowing smoke at you. However, if you work a good deal on the new trailer (at least 25% off MSRP), do not expect more than Kelly or NADA wholesale without options for your trade. It would be good to look that up yourself before talking to that dealer again, or any other dealer. I have seen in many posts where wholesale is around 10% to 20% below low retail in the NADA guide (which can be optained online), but to get any more accurate than that, you'll have to invest in buying the NADA or Kelly book, which may well be worth it in order to make sure you don't get taken. Especially in these times, you should be able to work a great deal on the new trailer, but used motorhomes just don't seem to be selling, so the dealer probably really doesn't want it, and will try to give you as little as he can get away with and still make the deal. Knowing its real value will be good information to have on your side. Good luck!
2008 Newmar Kountry Star 3943
2008 Jeep Rubicon Unlimited