Well the last video card that I got excited about was the G-Force 3 and bought it based on the promise that it will make my whites whiter and my brights brighter but was disappointed in what it did for me that day as apposed to what it might do for me five years down the road.
Granted newer cards means faster but how fast is fast enough?
For now my 780 ti gets the job done, as I bought it for shadowplay, but one day I might buy a “used” 1080 on impulse because well it is better. 
In the mean time
I would rather see an effort made to standardize the technology so that we call all make use of hardware rendered physics in Unreal 4 instead of CPU rendered.
The problem with selection is it’s VHS versus Beta all over again and to be called a “true” video game video card should mean the card shares usable features to day with out having to be a Pioneer.
Unless your name happens to be Carmack.