I won a pair of free sunglasses at a party awhile ago and I learned a lesson:
People pay lots of money for NICE sunglasses because it's worth it. You're basically looking through the lenses of heaven.
This whole UV, Polarized, yadda yadda yadda....that shit's for real.
My relatively new acquired glasses look pretty silly on me. But man, it's a whole new world. It is.