I just finished my first self-built machine in December. Upon hearing of the advent of the new Nvidia Kepler 600 series I must admit to feeling a little disapointed. Should I upgrade from the brand new 350$ GTX 570 I bought six weeks ago? Even if I did wouldn't it be bottlenecked by my PCIe2 motherboard? I believe the cards are PCIe3. Anyone have any advice or words of consolation?