Hey Jack - I have seldom read anyone getting so worked up over a new camera before!
I have never seen anyone with a gadfly chasing someone else over their purchase decisions before, as Bernard does mine, either
I am actually not all that worked up, I am more "debating the pros/cons out loud" than anything else.
Bernard's default position, of course, is "the pros of the D810," so I take the other side ...
I would just point out that of course the serious flaws are that 1. It's not full frame, 2. It's not a Leica and 3. it will not give you a neck rub after a long hard shoot. (that was not meant to be rude by the way).
I didn't consider those! lol
And the sad thing is that in 12 months it will be so yesterday. Sigh, true of all out lovely trinkets.
Jim
That is why it doesn't really matter.
I bought the 7D in 2009 I believe. It is time for an upgrade, and the 7D II is just the most sensible choice for me overall.
I have learned to take better macro images than most with my 7D. It's not just about the sensor, it's about composition, light, and background. I have seen people post macro shots with the D810 that I would have thrown away. Most of the people whose macro images I still aspire to duplicate shoot Canon. One of the very best anywhere shoots Pentax. Very few actually shoot Nikon. However, I have seen a few D800 images that were awesome. Ultimately, ALL cameras nowadays are capable of taking superb macro images if the person behind them knows what he's doing. One of the best shooters out there still uses a Canon 40D, but his tireless treks in tropical rainforests, his knowledge of wildlife in general, and his mastery of composition & light, are all superb.
When I go beyond 1:1 in macro efforts, Canon has the most versatile solution of anyone. And I have used that lens a lot.
Ultimately, it's all about the lenses for me, as well as comfort with the system.
As a macro shooter primarily, I gain in every way by staying with the upgraded 7D II compared to the 7D.
But if I go to the D810, I gain in resolution/DR, but I lose across the board in everything else.
Jack