This would leave two choices for me:
keep both scanners (5000 and 9000) and keep on trucking.
sell both scanners, my 35mm and 6x9 systems and lenses and invest into digital.
I prefer the first version
Because nothing can beat the lenses, the resolution, the feeling, the advantage of film (and in my case **slides**). I just hope the IT industry won't abandon USB and Firewire ports the next 10 years, because I wouldn't be able to invest into a new Imacon scanner... and Nikon will service my scanners for the years to come, or somebody else (at least I have a detailed instruction manual with images on how to disassemble a 5000 to clean the mirror and lens).
Concerning the software: I've talked to Nikon Europe and they informed me that they don't have too much interest in improving their NikonScan software, rather I should use VueScan...
I hope VueScan will be around for the next 10 years as well, because we will see always some sort of scanners in the future.
This is the dirty trick on how the camera industry forces us to abandon our excellent equipment and trade it in for some plastic garbage which needs to be replaced every 6 months!