Sounds good, did you like using it overall? Buying one? I think for me, it will be a natural upgrade when I need to replace what I currently have but not enough of an improvement to warrant selling to upgrade, I think because the D800 is just a fantastic camera. I'm happier spending the money on an Otus instead, I honestly think my talents are the weakest link rather than the equipment I use! All good fun.
Yep, I'll get one. Need to compensate skills shortcomings with the best equipment!

The value I expect to find is:
- even higher image quality at base ISO,
- improved Live view (effective today but not very sexy),
- much more discrete shooting in live view,
- hopefully a bit more consistent AF at f1.4 (it is already manageable with the D800 but a slighly higher hit ratio would be welcome),
- slightly brighter viewfinder should help with manual focus with the Otus.
I won't try to convince anyone that it makes it worth the cash.
Cheers,
Bernard