Yeah, if heads-up computing fails in this iteration (and I suspect it will in this iteration) its not going to be aesthetics it will be because no one can build a compelling use case for the price. Privacy/Social-Contract concerns will probably worsen that, but I really doubt they will be sufficient on their own.
Because I'm a bad person, I occasionally ask Google Glass wearers what they do with them. I get answers, but none I'd call a good answer. But because I'm not a terrible person, I don't as the obvious followup question: "That's worth $1500 to you?"
