what would you pick.
a 1080 card, or a 1080ti card (price is excactly 20% more for the ti).
As far as I know, for mining purposes the ti is doing much better than 1080 non-ti. I think 1080 had some problem with the architecture of the memory that were improved on the ti version? Something like that.
No problems whatsoever on 1080, actually I am way more pleased with my 1080 then my Ti (more stable, higher clock, cooler, more power efficient).
The thing is Ti will be toe to toe with 2080 and will be better in the future.
If there was a scenario when there are no launches of the 2080 (or other upgrades, if we are stuck in this current GPU technology) I would definitely go with 1080 rig instead of a Ti rig.