ridesy
Personally, I have bought 2 x 1080 Classys and am just waiting EK blocks as the wait for actual HC from EVGA in Europe will be a LOOOOONG one I fear (live in UK).
That will be awesome! I just put the EK block on my 1080 SC and it's rocking. Two classifieds water cooled ought to really scream.
ridesy
Bigger issue for me is whether to use these on existing X79 (whilst awaiting nextgen) or go to X99 which would seem daft as X99 is already old, admittedly not as old as X79, but still old.
At this point I'd stay on your X79. Given how close AMD is to releasing their Zen processors, I would bet good money Intel has something really cool up their sleeves that they're only holding back in order to steal AMD's thunder.
That said, my i7 6900 is sitting in a UPS truck somewhere, and I should have it next week. It'll be a monster upgrade from my X58 system.