Or put another way: There's a couple of different contexts and occasions for using a TV, and buying an AVP is making a choice for only one of them. A $3500 TV is a lot more flexible in this regard.
The head strap was also not large enough to hold the device around both our heads simultaneously. After fashioning a head strap that fit us both I noticed that I could not get stereo sound given that AVP only has 2 speakers. Attempting get my son to watch with us proved to be impossible. All in all the device is somewhat of a failure when watching with others socially.