The value would come if it was something you would feel comfortable wearing all day. So it would need perfect pass through, be much much lighter and more comfortable. If they achieved that and can do multiple high resolution virtual displays then people would use it.
The R&D required to get to that point is vast though.
> can do multiple high resolution virtual displays
In most applications, it then would need to compete on price with multiple high resolution displays, and undercut them quite significantly to break the inertia of the old tech (and other various advantages - like not wearing something all day and being able to allow other people to look at what you have on your screen).
I take your point but living in a London flat I don't have the room for multiple high resolution displays. Nor are they very portable, I have a MBP rather than an iMac because mobility is important.
I do think we're 4+ years until it gets to the 'iPhone 1' level of utility though, so we'll see how committed Apple are to it.
That's what all these companies are peddling though. The question is - do humans actually NEED a display before their eyes for all awake time? Or even most of it? Maybe, but today I have some doubts.
Given how we as a society are now having significant second thoughts as to the net utility for everybody having a display in their pocket for all awake time, I also have some doubts.
The R&D required to get to that point is vast though.