I really wanted to get Costas but couldn't find a frame that fit my big head. I ended up buying a pair of Natives for $99. While I would never argue that they're as good as Costas, I've been very happy with the purchase. When Costa starts making a frame that fits my noggin, I'll probably pull the trigger to see what all the fuss is about, until then I'll stick with the Natives. On another note, the Natives also have a no questions asked replacement warranty. (I believe it's $30)