great gun, very controllable, reliable and concealable. They stopped making them a few yrs back and demand seems to be pretty high as prices reflect. I have 2, bought my first one 4 or 5 yrs ago for $400, have seen them in the last several months anywhere from $350-400 (rough condition usually) to $700 (claimed "NIB"). Seems like an "avg" price for one in VG cond these days is $400-500. SS models seem to command higher price. $650 seems high to me but if its truly "NIB", I bet if you didn't buy it, somebody else would. Think its safe to say they are in demand and that always seems to drive prices up. FWIW, I've never had a regret about buying either of mine. Its my usual EDC. Good luck.