Dealers are dealers... they make money from the deal. Some use intimidation tactics, others use fast talk reasoning, but they all position for a bargain. Some are honest and gracious (they should be applauded) and some are downright insulting with their blatant disregard for customers (they are lazy and repugnant, and should be treated with the distain they deserve).
Years ago I brought back a prized sports car from Britain - the first TVR 280i built for the US market as they reintroduced it into the US in 1984. It was gorgeous and in near perfect shape after 4 years since it was my second car --only 9000 miles. I decided it was time to sell it as I wasn't driving it much and wanted something else. In looking for a new car I checked what the trade-in was on it. The Honda dealer in Tysons Corner Virginia looked at it, looked at me (in my 20s), and proceeded to tell me how hard this would be to move and made an offer of $8000 -- this was a $30,000 vehicle! I was born during the day, but not yesterday

... so I advertised it in a national magazine. Within a week, a fellow flew from the west coast, bought the car for only $3000 less than I paid for it, and he shipped it back to Oregon. He felt it was a bargain.
The moral of the story here is that our CRDs are marketable to those who want an American built, small to medium SUV with a diesel for towing or the flexibility of bio-fuels. This is not a small group -- more than the 11,000 units that were built.
Since Jeep has not been forthright with CRD customers, the market value is declining -- the dealers only see what they want and in this case, the relative frequency of CRD owners looking to trade their prized vehicle for another indicates a feeding frenzy for sales folks

. The bottom line is that the trade-in price is dominated by the blue/black books. Don't look like a victim when you approach a sales guy and he won't treat you as such.
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Steel Blue 07 Jeep Grand Cherokee CRD

Mopar Skid Plates/GDE Programmer/Fumoto Oil Valve
80K+ miles & still smiling

Sold: Silver 06 Jeep Liberty Sport CRD