2. It will make VR-level performance available to a much wider audience, which means game developers will work more on these games.
Stop drinking the marketing Kool-Aid. GPUs aren't the bottleneck to VR availability.
What does Polaris do about the $600 starting price for the headset itself? Or the $200 on top of that to get the Vive for motion controls? When Oculus finally launches Touch, that's going to bring both systems to 800 USD. Add taxes, shipping, and high priced games and we're over $1000 USD for either system.
Most enthusiasts already willing to drop at least a grand in US dollars on 1st-gen PC VR aren't going to be put off by another $100 in GPUs. The ones that are already got put off by the hefty ask on the VR side.
Maybe when the 2nd generation rolls around with more accessibly priced headsets, the GPU angle will make sense.