and gasp,, cameras need repairs,, so always nice to have that backup.
Also,, the D40X has the D80 generation 10 Meg CCD sensor, which is one of my favorite sensors, rich, vibrant, and as long as you don't push the ISO,, then the D40x is capable of gorgeous pictures.
I don't plan to ever get rid of my D80. (once I upgrade her to a D7000).