What's the reasoning behind buying really expensive sunglasses? Are they "better" than less expensive ones?
I think those "Deviations" look cool but I've seen 25 dollar pairs that look cooler.
They are infinitely better than the cheap ones.
That said, if your reason for owning sunglasses is looking cool and occasional wear, get the cheap ones. You don't use them enough to notice the difference anyway, may as well keep that extra $$$ in your pocket.