If you feel like it is just about time to upgrade your GPU then embrace that feeling! Take that feeling,own it... love it.
But don't act on it.
Not right now.
The Greymarch is co.. I mean DX11, DX11 is coming!!
They'll be rumors. Then they'll be benchmarks. Then they'll be purchases and installations. It is all coming soon!
So don't go buying and don't suggest. Whether they ask about a GTX260 or a HD4890, or even a GTX295, you should say...
To be sure DX11, just like the Greymarch, is going to change the landscape of the realm of gaming and gaming performance. Be it the promise of what should be some very powerful GPUs or the chance for the bargains available on a soon to be defunct DX10 GPU market, something good is going to happen to those who wait.
So if you have the opportunity to tell others to hold off on their next GPU purchase, take it. Tell them to wait.
It is good advice, pass it on!