kermaier
Well-known
I've never bought anything on the 'bay. My impression is if a person sells his equipment there, it's got a flaw or is pretty much junk. If it was a quality piece, he would sell it on some forum or trade it in to a dealer. Maybe there are some rare exceptions, but damn few.
The only person I trust on the 'bay is Jiri Ecer, a man of impeccable honesty and knowledge.
True, there is a fair amount of junk being sold on the 'bay, but it's not all bad. I've picked up a bunch of good stuff in fine condition, including RF lenses from Canon, Minolta, Konica and CV. And I've sent back a few that weren't up to the claimed condition. All in all, my success rate with the 'bay is about the same as with KEH, though not as good as my experiences here on RFF. 🙂
I have sold stuff on the 'bay, RFF and Photo.net. These days I prefer the forums' classifieds, but trading used equipment in to a dealer always nets you significantly less than selling it outright.