Sony HMZ-T1 Head Mounted Display has two .7-inch OLED displays that can produce a 1280×720 resolution image. Each OLED screen can be tweaked according to your eye, and because each one sits just inches from your field of vision it creates what looks like, or feels like a 750-inch display viewed from 60 feet away. The HMZ-T1 does HDMI devices.
If you don't care about a partner for single player games than this would be the most cost effective way for viewing video. I already have a 1080p HDTV so I won't be buying Sony HMZ-T1. This visor is for Generation Z people in public schools.
I don't think it'll sell well, because most Americans aren't fighter pilots. Nintendo Virtual Boy failed for a reason. Playstation Vita is better usage of money than HMZ-t1 ever will be.