Most people wear sunglasses for different ideas. The sunglasses can be used while driving,running, skiing, and even in the outer space. Certainly, the expensive sunglasses are made of better materials especially they are handmade. There are many benefits of the expensive sunglasses, and it is usually worth it to pay a little more for the better quality. They tend to look better, be more comfortable, and maximum protect from the harmful UN rays, so it can protect your eyes and protect you from any hurts which the cheap sunglasses cause.
It is hard to say. In my opinion, some expensive sunglasses themselves won't give you more benefits than some affordable sunglasses. Today, the price of sunglasses are ranges from dollars to thousands dollars. Usually, expensive sunglasses are com from some famous brands company. Their high prices is decided by their brands but not the sunglasses themselves. I can deny that there some inferior sunglasses sold cheaply. But there are also some good sunglasses are affordable. Maybe they won't made by some famous designer or famous brand. But they are made from excellent material and well design. If you really want to the benefits of expensive sunglasses over affordable one, it just can meet people vanity with expensive brand sunglasses.