No, don't discount the importance of lower pricing. Any lower pricing they'd feasibly offer would still be quite expensive.
I need use cases. I need killer apps. I need the flavor of killer apps that let me build customized functionality without actually having to build apps. Most essentially, I need to know nothing I look at goes to Google.
People unreasonably worry about glass wearers recording them. I'm far far more concerned about Google recording via glass. I'm worried about data mining, I'm worried about facial recognition. Imagine this day. Your workplace issues glass devices for everyone. You step outside the office to have a private conversation in the parking lot. You've been a good drone on paper and face to face but criticize your direct report to some of your peers during the conversation and admit your frustration. You indicate you might start looking for something else. The next day your boss who has been monitoring your feed thinks you are buried and finally wants you to train up someone to assist you. You think, omg, finally, recognition and with that you aren't so eager to bail. Just as your help gets up to speed and there is light at the end of the tunnel they find some unrelated excuse and can you because you've just trained your replacement.
Frankly, I wouldn't be any happier about the data being used to assist "law enforcement", "catch terrorists", allow parents to monitor and "protect" their children, or "catch cheating spouses" either. I certainly wouldn't be happy if my wife was feeling frisky in a dark corner on the boardwalk and some bored night shift admin at google captured the clip and uploaded it to the web either.