I don't know about that. I only found 11 of them for sale within 75 miles of me. $25k seems to be about the lowest I've seen them going for unless they had a salvage title.
Most of the clean low mileage examples I see the owners are asking around $32-35k for them.
Expanding my search to 200 miles revealed a whopping 15 cars for sale including
this gem
2005 Lotus Elise, red, 5,900 miles on it, One owner, Always garaged, Low mileage, No accidents, Never seen snow,interior/exterior in excellent condition. Looks pristine and he's asking $36,000 for it. Might get him to knock a couple thousand off but I bet he wouldn't go too much lower.
Just for kicks I did a search for 2005-2009 model year Corvettes and came up with 255 listings within 200 miles of me.