Old school and new school: Vintage M Frame 1.0 Sweep Crystal Black / Fire Iridium for $35 shipped. Jupiter Carbon Matte Black / Black Iridium for 90 shipped. M frames are a bit worn out, but they still could be usable if I wanted to use them. Jupiter's frame is in 9.5/10 shape, the lenses have few small marks, so I guess 8.5/10 is what I'd rate them. I'm really happy with the purchase for that kind of money! Just a thought: the M frames are amazing after I compared them with my Radarlocks. They are lighter, sit better on my face and still look quite good even 25 years after they were introduced... Incredible. The best sports sunglasses ever made? Possibly. The only thing I like more in Radarlock is the looks, but that's up to ones personal taste. I guess frequent lens changing will also make Radarlocks a better choice.