Sounds like the "flyte" model you're describing, steamlined frame, check out flyte.ca. They are indeed rather rare only made for about 4 years, and they didnt sell to well making them even rarer, so the price they are asking may not be too outta line depending on condition. Last year a repainted terrible condition one missing parts sold for about 700US funds on eBay, and on the flip side I saw another listed over and over for similar price but never sold as far as I know even though it looked a little more respectable condition wise, So I guess you can't really say what its worth, just whatever someones willing to pay for one I guess.