Is it just me or has the average value of used quads dropped? Is it because there are so many out there now?

I remember seeing gnc caliber race quads selling for $15 grand not even two years ago, but now if you look on EBAY or even some of the classifieds those same quads aren't even selling for $10 grand.

I just bought a LRD aluminum frame, Roll Design LOBO front and rear suspension, and custom axis shocks for my 330 powervalve, but now that I step back and look at it I question my purchases in fear of them not being worth half of what I paid for them.

Please tell me that I am just not looking in the right places and race quads are still in demand. Don't get me wrong, I am not interested in selling my R just yet, and I know that you have to pay to play, but I really don't like the idea of throwing about $10 grand away.