Guy's, I think you'll find the supply of decent cars is drying up, I know from what I have seen in the States over the past few years there are less and less of what I'll call servicable cars for sale. I've had a 70 B/B Fastback in the US for the last 17 years (in storage for 15 of those on and off) and I am now finally bringing it to Oz. I've been offered big money recently in the US, however it will be burried with me.
So I think those that are after a resonable car to start with will have trouble finding one and when they do will pay more for it. But for the short term Mustangs will have been devalued by the dollar, however the dollar will be brought back in line to other currencies over time, so don't fret. Anyway, show me an enthusiest (and that's who we are talking about) who imported his car, complied and regoed the dam thing and went through the crap that we have to and only sees the value of what it might be worth. As they say "It's only worth what someone will pay for it" anyway.