Vintage Cazal Sunglasses are by far the most collected vintage frames on the market. I would have to say mostly because of their still cutting edge design. The other main reason would have to be it's huge presence in 1980's hip-hop culture. The very rare Vintage Cazal 623 Diamond Edition Sunglasses are very well known for being rocked by The Fat Boys. I have a pair myself, but have never seen anyone else with one. The Deluxe Vintage Cazal Sunglasses seemed to only be distributed in the Americas and not in Europe! Keep drooling Cazal fans!!! ONE DAY!