Currently I don't think it's worth it, since there aren't too many ground-breaking exclusive games at the time. Besides, most of the upcoming games are compatible with DirectX9, and can still run smoothly given the right hardware. Maybe in a couple of months or so it'll be worth it, and we'll get to see the full power of DirectX10, but right now, I'm liking my "old" rig I built back in '05.