Damn Dealers!
I looked on Autotrader last night for a used Charger SRT8. The average price was around 38,000 the lowest price was 37,000 for a Charger with 15,000 miles on it. Then I went to Dodge and build an 2007 SRT8 Charger for 38,600 MSRP, new! Drop another 3 or 4 grand a few months back during employee pricing and you could get a new Charger for 34,600 MSRP. Now why would I pay some dumbass dealer 37,000 for a used Charger with 15,000 miles?
They are already jacking up the price on the Charger's, it is a guarantee they will soak you for all they can on the Challenger, sadly it is just how the world works!