I have an Asus GTX 980Ti Strix and I got a really nice offer from a friend, he knows that i bought it like 20 days ago, so he's willing to pay almost the same that i paid for it, then I was wondering if it would be good to sell and add like 40$ more and go for a gtx 1070 G1... I really love my gpu but i think i could let it go if its a smart upgrade. the question is: should I go for it or the 980ti is fine ?