Has anyone noticed the increasing number of low cost Corvettes currently on the market? Is it due to Spring arriving and guys wanting to change their ride? Or is it the economy forcing these sales? Over the last 3 months I've seen several nice looking C4 Vettes for sale on craigslist in my area for $3-4,000 with 60-75K miles on them. Has the market dropped that much? What's going on?