Upload & Sell: Off
Prices have probably moved up a bit but you should be able to get a very clean copy of this lens for $350, perhaps a bit less. I stumbled on a pristine copy with its original box for $300 on craigslist. [snip]
Happy shopping. The 180 is a great lens!
I paid a little closer to $400 CAD, my copy is pristine. I have a love/ambivalence relationship with the lens, it produces beautiful images but I feel no strong draw to mount it to my camera. I find the size and weight to be just a little higher than I am comfortable with (the 105mm f/1.8 AI-s however poses no problem), and my hand holding technique, while it has gotten better since getting the lens, is still not great. The image really jumps around more noticeably in the viewfinder than with the 105, so I try to keep shutter speeds way up.
That being said, Tony, $350 should net you a very good copy of the lens, and I wouldn't recommend going above $400.