Despite the above, the D200 approach to selecting non-CPU lens specifications was the best yet implemented by Nikon. Why they abandoned this solution in favour of the limited slot number feature is beyond my imagination.
If I remember correctly, the D200 allowed up to 20 non-CPU lenses to be entered, and they were automatically sorted by focal length?
I have more lenses than the 9 available slots in the D600, but I usually carry only two or three at any time, rarely four, so the limit has never been a problem. Before I go out it's just a quick job of entering the day's lenses in the first 3 or 4 slots. Actually, if there were more slots it would increase the chance that I selected the wrong one by mistake, maybe that's why the number was reduced?
I added Non-CPU lenses to "My Menu" so I find it easily to set up the lenses. The "Fn" button is configured to switch between the stored lenses, so when I change lenses it is pretty quick to tell the camera which lens I'm using. Works well enough for me (I still forget to switch to the correct lens sometimes...)
I would be more impressed if you could select an actual lens, eg "Series-E 75-150/3.5" or "35/1.4". The camera could then have the matching data including focal length, aperture, exit pupil etc to allow more accurate metering and exif data.