Prices for cosworths in general are nonsense at the moment, especially when so many people seem to be referencing eBay as some kind of market indicator. I've been looking for an escort cossie for a while, eBay has been full of the same 18-20k cars (and other even more daft ones) for months that don't sell, and there seems to be very little advertised elsewhere
Prices will only go up, no one can dispute that, but there's a lot of opportunists out there.
That's the thing tho, if eBay is the only referance its because theres none for sale else where, they are getting thin in the ground now.