Agree same what i told my friend.He paid 3.5k for his 1060 6gb in my currency.Now he went and paid 7k for a 1070 and he only has a 1080p 60hz monitor.But my friend listen to other people not me so if he got money to waste then thats his damn problemIt is a bit wasted getting a 1070 for 1080p.
The 1070 is best suited at 1440. So in effect you'll only ever be using a portion of the capabilities of a GTX 1070, and your CPU will have to render all the frames to keep up.