I bet my life savings this product will be used to view adult content once it's released.
First, I've never found 'adult content' appealing. I had one of those huge satellite dishes decades ago, and found a Playboy Channel 'free week'. I did watch some of their 'content', and ended up laughing at most of it, and cringing at the rest. Vapid plots and vacuous acting. (I got more out of reading a sex scene written by Isaac Asimov)
And with that, all I have to say is 'VHS'... We were supposedly stuck with that inferior format because of 'adult content'.
Sitting here, thinking of a need for a 'mixed reality headset', I can think of a few redeeming uses: Gaming, concerts, maintenance, manufacturing, utilities location, education (like 'seeing' the stars in a place with mile thick clouds), museums (to experience what life might have been like, or make painting/sculptures active).
'Adult content' is a thin niche market (I hope). There are far better uses for that genre of technology.
And we don't even know how much it'll cost yet. $3,000? Oh, a VERY VERY VERY thin niche market...
EDIT: One last comment: 'Google Glasses'!