My re-acquaintance with this hobby came when I purchased a Zorki 2 in an antique shop in Poland. I knew it wasn't a Leica, but it certainly resembled what I remembered as a kid about 40 years before. It took me about a month of searching on the web to figure out what it was. Two weeks ago I walked into a major camera shop in Los Angeles (name omitted to protect the guilty), and the salesmen (yes, more than one) looked at my Kiev 2a and wanted to know if it was a Leica. They had never heard of a Kiev, or, a pre or post war Contax. I had to explain it to them.
I guess what I am saying is that we have knowledge that many others do not, including, obviously some who sell cameras for a living. I can't forgive appending "rare" to these cameras, but I can sympathize with a mistake of FED for Zorki. The sad thing is that a less knowledgeable buyer will get the wrong thing.
Dave