>>273496904
The reason is because the Snapdragon chip they used doesn't have a video-in IC so they would have had to design and manufacture their own solution to that, which would have taken away from their main goal of providing the best standalone product they could confidently provide. But now that they have experience building this product, and new Snapdragon chips have video-in IC, the future is bright for native video-in solutions... which will hopefully not need to happen.

The reason I say that is because I believe we may get eye tracking and foveated rendering to a point where we can render and send very little data wirelessly without perceptible differences in the visual and latency. In that sense, it may be that standalone/hybrid headsets will become the default PC VR headset architecture that people will buy, because it simultaneously allows high quality cheap wireless to work through the on-board processing handling the foveated image reconstruction.