You are right they are quite a bit cheaper but they are just as obtrusive. I think that glasses (esp. dioptric) are fundamentally a part of your identity and I think that most people fundamentally hate associating themselves with a company not to come across as a 'fanboys'. Like wearing the snapchat glasses projects a certain type of persona which I think most people might prefer not to project.

I think that they should be marketed as "cool glasses (that also record video)" as opposed to "video recording glasses". "Video recording glasses" are a gimmick, "cool glasses (that also record video)" could be timeless.

My initial impression upon seeing the spectacles was that they had two cameras. They don't, but the impression points to a key design choice that was, IMHO, fatally absent from Google glass: attempted symmetry.

I think that people will be more likely to wear the spectacles for this reason--they can actually pass for a pair of somewhat ostentatious sunglasses to an unknowing observer because of their near-symmetry, vs. Google glass, the mere shape of which screamed "BORG!"

Have you heard of Raybans?

The merger of fashion and technology is possible, considering the existing fanboyism of some products and design of smart watches.