I have been comparing prices on older Nikon F and F2 bodies recently and noticed that the prices are higher than usual. Is this my imagination or have they actually gone up in price, especially the F Photomic FTN? Does the same hold true for Nikon parts and service? Will it cost that much more now to repair older Nikon bodies?

And yes, after Nikon had the bright idea of discontinuing it, it is probably going to cost a lot more RSN.
