Wow, we used to always buy Luxottica glasses. You probably know they own something like 90% of the "premium" brands, like Ray-Ban. Then I wised up. A few hundred per pair for Rx, polarized, etc. Then I noticed Walmart sells the other name-brand suns for 1/3 the price, and they last just as long as the expensive one.
I went to replace the ones I bought from Walmart but not all stores carry the frames, so I looked on the manufacturer's website. The frames alone for non-Rx polarized suns retail for over $300 from any of their "authorized" dealers. Walmart sells them for $80.