My D70 stopped working about 8 weeks ago (its 6 months old). Took it to the local camera store who had no clue. They sent it to Nikon. 8 weeks later (today) I got it back. Turns out they had to replace the moving parts...at least those associated with the shutter/mirror mechanism. Nikon said it simply wore out... I shot 7K pictures with it. The camera store agreed thats about the life of the shutter/mirror mechanism. Question: Should I really expect to have my camera rebuilt every 7K shots? Is this normal?