I can't answer you question for sure, but I suspect the condition has lot to do with it. A pristine collector grade camera will always cost much more than average. Also, the Minox B has a Selenium cell meter which is very likely to not be working, or not very accurate as it ages, so a nice Minox B which is working properly is probably not the norm on Ebay. Personally, I like the later Minox C, or LX models because of their cds meters and auto exposure. ---john.