If I can make that amount online using Adsense I don't see why I wouldn't get a pair. Its all depending on that though, at the rate im going i'll get a "free (earned)" pair of them by 2014. They do look cool but I think they might be a "fad" that will drop off quickly, it might not but still has a strong chance of that happening.
Yes true I think it is a pretty good gadget because you will be wearing a computer, phone, camera on your eyes and you can take a picture of what you see quicker like butterflies and birds. The price will come down in 2014.