Gear Talk: Bamboo Sunglasses?

Hey everyone!
To continue about summer gadgets this may be something that some of you will love.

I have seen a major increase in the available bamboo sun glasses on websites like Amazon and it seems more people are trying to get their share in this new market. Now I'm not selling it to anybody, I just think they look cool. But why does one person ask 5 bucks for it while another one asks like 40 bucks? They almost look the same if you ask me.
Anyways, I just wanted to be an inspiration for those who like this kind of stuff. Will be sharing more whenever I come across something cool. Have a great weekend y'all!!