There's normally a few on ebay so I'd keep checking back.
The current Nikon F6 is the latest incarnation of the F flagship series, and quite possibly the last. I have no knowledge of the F6, but I don't doubt it's the pinnacle of 35mm film SLR's. I owned an F4 and had quite extensive use of an F5 for a while, and found it to be pretty well the ideal 35mm film camera. Put it this way, if I still owned a lot of Nikon kit, and wanted to shoot the odd roll of film, I wouldn't be looking any further than the F5, and if I owned one, wild horses wouldn't drag it from my possession.
Cameras like the F5 will always be in demand, especially at the prices they go for now. If you're selling, I'd say don't even think about it, if you're buying, just be patient and wait for a nice one.