I just upgraded from a 3770k to a 3800x and play PC2 in VR more than anything else I do with the rig.Thanks for the replies.
I heard AMD not so good for VR as they have a slower single core speed.
And when not in VR, I'm pretty happy playing at 1080p - and AMD cards are not good for that either as they bottle neck the GPU.
I don't have a CPU at moment, I'd be buying a totally new system.
I don't know whether to go very new, or last gen - if any last gen CPUs can cut it.
The 3800x was a major upgrade and does great in VR. (Same 1080 Ti card used in both rigs fwiw)