Agreed. I have my D800 since July 2012, and it had gone to quite a few places with me (India, US, Indonesia), scaled mountains and dived the oceans. Shot portraits, landscapes, city scapes, underwater wide-angle, macro, birds, wild life, people, events, etc. The only thing I haven't really done is shooting sports.
2 things happened:
- I lost interest in m4/3. Suddenly the size advantage is not an attraction anymore. The "poor" performance of the m4/3 (ok to be fair my experience is up to E-P3) put me off using the m4/3 unless it is absolutely not-quality critical, like attending conference and having a few casual shots.
- I became more conscious of good shooting techniques. Using good support like lugging a tripod to India, US was not something I'd considered earlier - always been a f/1.4, f/1.8, f/2 or f/2.8 prime whenever I travel and live within the (proudly) steady hands and large aperture with moderate to high ISO to tackle poor lighting. With a good tripod I was doing ISO 100 and f/8, getting shutter speeds of 15s regularly, but boy were the shots worth it! Delayed release, critical focusing, slowly setup became a habit. Something I was not doing much of earlier. But of course the 28mm f/2, for example, still shines in poor light handheld. The results are truly amazing - sharp and beautiful colours!
What was surprising was that the "quality" of lens issue didn't really bite me, not yet at least. All my primes that I have tested are up to the mark, including K type converted to Ai, Ai, AiS, AF, AFD, and AFS (20mm, 24mm, 28mm, 50mm, 85mm, 60mm micro, 105mm micro, 180mm). Ok, some lenses had more distortion and more light fall-off, but all manageable and correctable. Zooms I have tried, including E75-150, Ai 80-200mm f/4.5, AFD 20-35mm f/2.8, AFD 80-200mm f/2.8, AFS 24-120mm f/4VR, were all up to the mark as well. Even the Tokina ATX DX 10-17mm FE zoom (used as FX from 15mm onwards) is sharp and flaws (CA mostly) easily correctable.
Still to be tested are some primes (e.g. 28mm f/2.8, f/3.5, AF 35mm f/2, AFS 50mm f/1.4, AF 85mm f/1.8, AFD 200mm f/4 Micro, etc), some zooms (e.g. AiS 80-200mm f/4, Tokina AF 70-300mm f/4-5.6, etc).
The D800 is really a revelation and the camera I enjoy the most so far (maybe only slightly more than my FE2 as it was my first camera)!