It is really hard to say. It is totally depends on your personal opinion. You kwon, Prada is one of the most famous fashion brand in the whole world. All the Prada products are designed by fashion masters with overwhelming reputation so that Prada sunglasses are absolutely fashion, at least to the fashion world. But for common people, I think, fashion is a different thing for everybody. If you really like it, no matter how expensive it is, it is worth. Otherwise it is not. I think it is the Prada cost that much money instead of sunglasses. If you are going to buy it, figure out what you want is Prada or just sunglasses. If you just want sunglasses, it is ok to find a cheaper one.