Market Value

Craigslist is full of preposterous photo equipment ads. Some examples:

Sony Cybershot DSC-F828 for $1,000
Seller claims it was "$1,500 new" which doesn't really matter when the camera is six years old... Surprisingly, the fair market value appears to be around $250, which means it's held its value quite well.

Canon EOS-1D for $1,400
Again, the price when new doesn't matter at all when the camera is this old. Fair value is under $500. It also appears that 1-series owners selling on Craigslist are mostly retarded, as the camera name is listed erroneously as things such as "Canon Mark 1D," "Canon 1D Mark," and "Canon Mark." Note that nowhere on the first-generation 1D does it say "Mark."
"Canon 1Ds EOS Mark" with the description: "Canon 1Ds EOS Mark thats what it says on the camera in gold. I really don't know much about it, just old and I got it from my Uncle for Christmas."
Uh, no it doesn't say that, you blithering idiot. The gold emblem either says "Digital" if it's the original 1Ds or "Mark II Digital" if it's a 1Ds Mark II. In white, it says "Canon" and elsewhere, it says "EOS-1." There is a separate gold emblem that says "Ds."

Canon EOS-1D Mark II for $2,000
In this listing, the seller said, "I challenge you to find one cheaper." Of which there are plenty, since they sell for about half that.

Nikon N6006 for $700
The most ridiculous one yet; KEH can provide you with one in decent condition for just $12.