They say "a poor workman blames his tools". What about the opposite? The autofocus on my Nikon D800 is good enough to track a blackbird in flight. It makes me look good. More than 9 out of 10 images were in focus. Never seen that before.
The other unexpected bonus: With a 36 MP sensor, I can crop images out of the corner to simulate the field of view of a 600mm telephoto lens - and still have 14 MP left. Fascinating.
I don't have the patience to be a nature photographer. The D800 lets me fake it.
After 35 years, I may have learned something - but todays cameras are learning faster.
In my day job I call it 'the move from automation to optimization'. After you reach a plateau in terms of features, it is time to carefully make things smarter.
I see a couple of examples of optimization of tasks in the D800:
1) Auto ISO. Finally the minimum shutter speed is tied to lens focal length. Auto ISO worked before - but I could do better manually. Now the D800 pretty much beats me 90% of the time.
2) AF-C autofocus with AF51. This used to be too slow and picked the wrong subject. Now I centre the subject I want and then let the subject move anywhere in frame while it stays in focus. As good as selective focus 90% of the time.
We used to say the camera makes no difference - it is the photographer that matters. Still true but now, with improved optimization, the photographer can 'focus' on other tasks.