I'm taking the plunge and my Vive arrives tomorrow. I imagine that I'll need to upgrade my GTX 970 to get a good experience.
You're 970 will do ok just now, wait to see what the 1080ti does then decide if it's best holding off till the next range.
Most stuff will play perfectly on a 970 without supersampling.
Kingroin I agree with you 100%, the black smear could also be fixed by black frame insertion although it would lower brightness a bit. Phone is playing up otherwise I would have quoted you.
Edit.
Been playing Rocket League tonight as usual and I honestly reckon if there was a VR version locked behind the vehicle but with the ability to look about to see where your teammate is, I would be on an intravenous drip.
Talk about a killer piece of software for VR in general.
They have discussed VR at one point but mentioned with it being unreal engine 3 that there is no actual support for VR or the type off 3d rendering required, this has been proven to be circumvented by helix and the contributors to helixmod which allows 3d in games that do not support it.
It's just a wish I have anyway.