So I have a GTX 970, from GIGABYTE, and many of the listings on Newegg are very pricey for a new one (some of them hitting $800 USD!), and the GTX 1080 seems to be comparatively worthless, only dwindling around $500-600... Obviously, I'm not getting $800, since mine is about a year old. And obviously the 1080 is better in almost every way. However, is there a way I could sell my 970 for around $200 off, and trade it in for one of their GTX 1080s, only putting in a small amount of money?