Kend: I had one of these a while back. It shot well and was handy but I could not get used to the stock fit, noise etc).
It was in minty condition and I sold it with one magazine for $550.00 IIRC - this was a year and a half ago.
You are right I seldom see them on the used market of recent.
I then bought a heavy barrel Ruger 77/22 V/T and that Rifle suits me to a "T".
Good luck if you decide to try one of the Zytel models.
Hold into the wind
VarmintGuy