When I say trade, that includes selling on your own to get the most money. Sometimes, and I stress sometimes, the trade value given is pretty reasonable. Especially considering how big a PITA it can be to sell a vehicle.
It can be a pain but dealers usually will get you on one end or the other, just depends if the convenience is worth it or not. I tend to customize my trucks a little, while you never get that money back, dealers usually just go off book.