I bought these Ray Bans nearly FIVE years ago and have worn them nearly every day since. These have accompanied me on 7 Middle East deployments, 2,500hrs of flying, and too numerous road trips to mention. These have been abused nearly the entire time (thrown in flight bag/wife's purse, wiped off with t-shirts, etc...) and have only MINOR surface scratches to show for it. We're talking so minor that you don't notice them while you're wearing them! The quality is amazing.
My only beef is that I live out in the middle of the southwestern desert AND have no memory of ever seeing aliens OR any government agent assigned to deal with them. I can only surmise that the high quality G-15 lenses do not have the ability to adequately block standard issue memory erasers that the polarized version MUST have. Probably for the best anyhow...

So, if the lack of memory protection isn't a dealbreaker and you are looking for a sweet pair of shades, look no further!