I bought a Asus Strix R9 390 w 8gb Vram in jan 16. I've been happy with it so far. I'm looking to build up to a VR heavy machine as well as 1440p gaming w high fps. Would I be better off hoping right to a 1070 or 1080 gpu and just selling my r9, or is there some sense and value in getting another Asus R9 and crossfiring it? As for the rest of my setup, i5 6600k, ssd, 16gb ddr4 2300 ram. Thanx in advance for your opinions.