First, the cost of making a pair of eyeglasses frames actually is rather high.
Second, they are a designer brand, and the quality of the frames is mostly very good.
In a word, it is a combination of design and quality since you want your glasses to be hold the lenses at the right angle,while do no bend over time, what's more, it is light and smooth. It is really highly required.
Yes, the eyeglasses frames are so expensive now because of the perfect material. Some materials could make you wear for many years with no breaking. The good material of the eyeglasses frames will be so durable. The high price of the eyeglasses frames are worthy to buy. You could go to the real stores to buy the good types of the eyeglasses.
Apparently, due to monopolization, some makers of eyeglass frames own virtually every designer label and the markup is huge. As consumers, we are willing to pay a lot for eyeglasses. they are functional, they are make us look more beautiful and some of us are completely disabled if we don not have them. Therefore, the makers are going to charge us high prices. Those which has the huge brand will get high prices, please do not buy those brand name eyeglass. Just choose those which has the same quantity with low price.