Carver CT 7 - Where are all the used ones?

Hi. I just bought one of these used in excellent condition not quite a month ago. We both have the same questions and my research has yielded the same results. I can say the build quality is fine as well as the layout of the controls. I haven't had much time to give it a long evaluation on its sonic qualities, seems someone's always doing or watching something, but there is nothing about it that I find irritating so far. I ordered a manual for it just a couple of days ago to fully appreciate some of the features. Since I had just got a Carver PM-700 for a steal ($190 including shipping) and a pair of JBL L5'S ($125), I couldn't resist buying the CT-7 to have a matched set. I have them driving those JBL's and for the $501 I paid for the trio, I doubt I could do much better with spending double the money.

If you use the refine search feature and search completed items, you'll find one that ended last week with buy it now at $185. Advertised as flawless and in excellent cosmetic condition. Your guess looks good. When were they made/sold?