I am buying mine for 1000. Just actually sealed the deal this morning. I know that my price was a good deal and the lens is in great shape, original owner who I know through our PPOC community. There was one on ebay for 604 auction style yesterday but Im sure price will go up. Good luck.
Thanks well you better swipe yours then too. Sounds about what I have heard is right price if its in good condition. If maintained glass doesn't really depreciate too much does it?
Suggestion: For pricing comparisons, check local craigslist in addition to fleabay. I like it because i can inspect the items before purchase, and usually they're cheaper than eghay because the seller isn't hit with astronomical fees.