Hello I own a evga gtx 280 which i bought about 6 months ago...i was looking to SLI it so i went on newegg,amazon, tigerdirect to check prices so i can buy one...but i can not find it anywhere..only refurbished or stock is currently unavailable..is there something going on with the gtx 280 that i need to know about? out of production?!? i saw one of amazon but it was going for 600+$ which is twice the amount i paid for my first one...something is weird...can any1 fill me in???