@ChrisW think your missing the point.

Google Glasses would be used by the user all day. CCTV doesn't record for public broadcast and its data is destroyed daily/weekly/monthly.

Google already admitted to data mining information from all its outlets. If you believe no one will see them, your laughable.

Taking casual pictures in public with friends is one thing. Having Google data mine images of your own house, what your possession are and daily activities is a different kettle of fish.

Maybe 2014, but nobody will ever be ready to have adverts chasing them 24/7 or have someone say I know your life.

Think logically for a second. You say nobody looks at the recordings unless you've done something wrong....how do they know that you've done something wrong unless they are, in fact, monitoring your recordings?
Progress should not infringe on the privacy of the individual. You say simple minded paranoia, I call your position simple minded acceptance. Why should large corporations have access to so much data on people? Crime prevention via CCTV in city centres is one thing, it's quite another to blindly allow them access to all areas of your life - your spending habits, your movements, what you watch, what you read, how often you do all these things. Even if you're squeaky clean, and have never done a single thing wrong in your life, why on Earth would you want faceless strangers pouring over every aspect of your life so they can bombard you with targeted advertising and other such inconvenient nonsense? Why would you so willingly open yourself up to that level of intrusion into your life? It's either staggering naivety, unbelievable narcissism, or both.

Yes, but a Nike shirt doesn't collect data on you, and those around you when you wear it.
Anyone not wary of a camera being thrust in their face is a person a little too naive for their own good. A CCTV camera monitoring an area of a town centre is one thing, a camera attached to everyone's head that records all sorts of data on the user and those around them is quite another. The concept is similar, but the latter is far more invasive than the former.