I went for GTX 1070 because I play at 1080p@120Hz, so I need those 120FPS.
I get them in Overwatch, BF4, CoD BO3.
Asking myself if it's a good thing or not, but I just can't go back to 60Hz.
Once I've seen what 120Hz means and feels, I just cant stand 60Hz. And for the good of my wallet, I wished I didn't see 120Hz.