Looks to me like the prices on these cars are stabilizing a bit.
Note thought that the values, since new, have dropped drastically for some time now.
My SRT6 Roadster stickered for a hair over $51k (I believe). I picked it up at the end of '06 with 3,450 miles on it and the value had dropped by almost 40%, which was sweet for me since there is no way I would pay close to $51k for the car.
Over the last 2.5 years or so, the value has dropped another 30% or so (mileage is now 7,355).
I am a bit surprised that the values have continuously decreased so drastically, but they will bottom out . . . . someday, and maybe even rise.