First time buying a GPU or something? This happens all the time. I paid $320 for an X1900XT two months before G80 released, I felt a little miffed, but its not the end of the world. Two years on (of playing all games but Crysis at max setting at 1680x1050) I got a 9800GT for like $140. Get your money's worth out of your card, don't worry about what everyone else has. It's not like your GTX 1080 suddenly performs worse because of this announcement.
9/28/16 at 5:18pm