When I bought an A7, it was as a supplement to my D700 so I could try some flange-depth-too-short-for-Nikon alt glass. But when I saw how glorious EVF / 100% zoom focusing was, I had to admit it was the future and give up OVFs forever.
What amazing cameras these higher-end Nikon DSLRs are, though. I did sell my D700 since its value was still quite high, but I still have my D1x and D2x and even use them once in a while.