Wow -- I just returned from the dealership after looking at an X6 and seeing if trading in my 2005 4.8is with 41K in awesome shape made sense...
After they evaluated my car and came back I am dumbfounded at what they offered on my ride.... They will give me $23K - A big ways away from where I thought it would be. A quick look at recent completed sales on Ebay and Autotrader also had some disappointing news, as sellers there did not do dramatically better.

Of course I know all about the economy and the gas crisis from the summer, but crap I got smacked hard.