It is a very exciting time for photography. It took a couple years, but Nikon has come roaring back
They were doing just fine, just that people got sucked into the Canon hype. The IQ from the D2h beat out the 1D even at high ISOs hands down, and the D2x did the same when compared to the 1Ds.
And when looking at all other areas of interest Nikon had better bodies than a lot of comparable Canon bodies (D70-->Rebel, D80-->XTi, D200-->20D/30D, etc.)
The biggest hurdle for Nikon was taking the Sony sensors and reducing the noise.
Then there is the lighting system to consider. The only real issue that Canon had Nikon beat on was optics and optic quality. Those few lenses that Canon has that Nikon has no equivalent, the primes that have motors in them, and the general quality of them across the board. Other than that it was touch and go with the bodies and flashes, pick your feature and run with it type of stuff.
There are a lot of people over at DPR that agree with you. I don't know...Thom makes an interesting case for 24 mp FX D900 and no D3X.
Anyone interested - read this thread.
It would help Nikon to introduce one that is cheaper than the comparable Canon maybe. Leaving the D3 sized model for a shortly delayed length of time. Maybe, just speculation.