I bought my originals for $5 in a little hole in the wall place. Best sunglasses I ever had and I literally miss them every time I put on any sunglasses. Although you can find them much cheaper than $600, I've seen prices as high as $2700. It took me three years to find out who made them, serial number, etc. and then I waited 3 more years because I just couldn't justify the price.
Last night, I figured I'd waited and been frugal enough and just bought a pair.
I'm looking at the new oakley lineup... the damn sale people are so fucking pushy I just leave... at one point I had money in hand to buy a pair but they're so in your face about it... My current pair is from China Town, (Spadina, Toronto).