Why Google Glass will fail and why this won’t stop smartglasses’ success

Smartglasses are probably the most promising kind of wearable devices currently on the market. And Google Glass is the most interesting device among them. Yes, Google Glass is sexy and cool. It has great design; it is small and futuristic. After all, it feels like a typical Google product - simple and great. Nevertheless, I think it won't be successful as a product and will eventually fail.
Disclaimer: the following is my own opinion and does not express the official position of ELEKS or its R&D team. In fact, some of the team members argue with me a lot that Glass is the best device ever, it will conquer the world and other things like that. Of course, I'm exaggerating here a bit, but still it looks very likely for me that Glass will eventually fail as a commercial product.
So, what's the problem with Google Glass? Well, there are two aspects of it:
1. The device itself. I'll dwell upon its drawbacks in the next section.
2. Its positioning and marketing. I'll show you some interesting historic analogies below and try to project them on to the future.

Five Reasons Why Google Glass Sucks

So, what's wrong with the device? When you watch the ads or listen to Google employees who evangelize Glass, it looks so futuristic and cool that you're starting to believe the future is here and search for the Order button. But things change when you actually get it. We bought one for our R&D team a few months ago and... well, I wouldn't say it is a big disappointment but the device is very far from being market-ready. Here is the list of 5 things that we found very annoying about Google Glass: