Quote Originally Posted by Roundabout View Post
I don't want to link to specific adverts, but I've recently seen a few f1.4 50mm and 58mm for close to $400 and up to around $650. Sure, there were some cheaper ones also, particularly 1.8 models or bundled with cameras. But there was even a lens hood for the 1.8 model for around $130. I might pay that for the lens - but for the hood?
There are lots of outrageous BIN prices on Evilbay for all kinds of lenses and many of them have been there for years. I think some sellers are happy to leave items listed indefinitely on the off chance that some one wants one enough to pay 'whatever it costs' rather than the going rate. Some items are so rare it's hard to judge their value, but otherwise the going rate is easy to determine from completed listings on Evilbay.