Ok, I can understand your reaction. I think you have just been outrageously unlucky. I am pro, not press but wedding and other social styles. I have two Fuji S3's...not the most robust build I know, but I have had no problems with either..or the 20F2.8, 35F2, 50/F1.4, 60F2.8, 17-55F2.8 Nikkors, Tokina 28/80F2.8, 12/24F4, 80/200F2.8.
However one views the cameras today, and the D200's are considered to be well built, compared to mechanical cameras they are much more complex designs combining electronics and mechanics. We all want auto functions, auto focus, etc, etc and within a budget we can afford as well as leading edge digital technology, chips and sensors.
Like any instrument, even the best need to be looked after. Gone are the days I believe you could have three Nikon F2's slung around your neck with brass barrelled manual focus lenses all clanking around together.
I think, to be honest, one needs to be almost obsessive/compulsive about caring for our kit these days, but it does bring rewards in terms of results that probably exceed those we were able to get from film versions in the past.
I guess, if one wanted the "best of both worlds" in terms of build and longevity there is nothing that can compare to the manual focus metal bodied lenses still produced by Leica/Zeiss/Cosina...and perhaps a Leica M8 body??
Please don't think I am inferring that you may be "rough" with your kit and you have obviously been exceedingly unlucky, but digital bodies and auto focus zooms with copious amounts of plastic really do not take the hammering metal mechanical cameras and lenses used to, although I do see threads from pros who have shot tens of thousands of frames with their D2x's, presumably on Nikon optics?
Without being too cliched, there is a parallel to our motor cars these days. Computer and electronic controlled everything..and they go and go and go until something goes wrong and the vehicle has to be returned for analysis...which is why I keep my Series 111 Land Rover, cos I can usually fix her on the side of the road!!