The main issue could be the passthrough quality. In the marketing material it's touted as "magic", we'll need to wait a year to see how it pans out in practice

The main issue could be the passthrough quality. In the marketing material it's touted as "magic", we'll need to wait a year to see how it pans out in practice (especially with mixed lighting, darker environments etc). In particular, the speed and quality of the feedback loop between the camera capturing your surroundings and the rendering to your eyes could be enough to kill the experience. If it's not up to the task, we're back to the full shutdown VR experience, and this device will have to compete with the other next-gen devices (especially up to 3500 bucks) At this point it's still vaporware, but I'll be excited to read the first actual impressions of the device in real world settings.