Bill, since I happen to have that pedal model (my most used and favorite all around piece of kit), I’ll point out that I paid $110 for mine on ebay about a year and a half ago. A new Q+ is only about $180. And if that used “vintage” one approached $150, I would have just bought a new one for a variety of reasons. I don’t think they’re really old enough yet to command far reaching prices when the pedal still exists in a more convenient box. My two cents. Good luck.