I have a D70 for about a month now and shot about 3,000 frames - so many pictures that I've had a hard time keeping them organized and have gotten very aggressive about what I keep and what I delete. If I shot that many frames on film and had them developed, I would have paid more than $800 - almost enough to pay for the camera. Of course, if I had to pay per frame, I wouldn't have shot nearly so many - more like six to eight rolls for the month.
The image quality is better than I got out of 35mm and the 1.5X crop factor has really helped with long lens shots.
I've only printed a handful of shots, but this is where things have fallen down a bit. I sent some to Adorama and they came back perfect - even at 11X14 size. I tried to print myself on an Epson 820, and they results were very, dark with no shadow detail and a color shift. I took a CD to the local drugstore and the results were bad, too. The colors were dead on, but the prints had "banding" that made them look textured.