I feel like this entire thread has a blind spot to the fact that this device is very much a luxury item. A 55-inch TV is ~$300. A high-end laptop is ~$1000. High-end noise-cancelling headphones are ~$250. You could buy all of those and still not reach half of the cost of this device.
The only people I can see buying the device are rich people looking for another toy, not as a serious competitor to other entertainment tech.