I've always been a bit of a sunglass junkie
I have paid as much as $300 dollars for a pair of shades. After all the crazy shades I've owed, I own a (more like 3) pair of no frills Arnette's. I've been wearing the same model for 5-6 years. They cost exactly $100. They are by far the best shades I've ever owned.
As for UV rating, I've never paid attention
for me it is all about how they comfort my eyes in the sun and for me it is all about the ppolarization. Regular sunglasses only cut down light from straight on but that is rarely the light that irritates my eyes. Polarized lenses cut down the glare from water, ice and other cars. Cheap or wildly expensive, polarization for me is the most important aspect for sunglasses
“ you know what I think?... It doesn’t matter what I think”