Google Glass was ridiculously priced in an attempt to segment the market to only people who wanted to buy it to build a hobby/business with. They knew it was not ready for mass consumption and tried to use price and availability to signal accordingly.
It's been 2 years and nothing, so clearly whatever the intent it failed.
In a few years a cheap version of the idea may start making the rounds like the mini Segway's. But, again when it was obviously going to fail at that price point why continue?
It didn't actually completely fail - Google Glass saw some genuine excitement among certain professions (eg. surgeons, pilots, or firefighters) that need up-to-the-minute information in a heads-up display, and it's been re-launched quietly to focus on those niches. Ironically, the fix will likely be to increase the price: it's not a mass market product, it's an enterprise product that increases the effectiveness and safety of certain highly-trained specialists.
