No, Fiber cables are really cheap. They are basically just glass with some reflective coat.
It is just that the connectors and more importantly the work of attaching those connectors to the cable that makes them expensive. They need to be welded in a dust-free environment, and require lots of skill to get right.
Also, copper cables capable of transmitting high data rates aren't easily manufactured either. Think of shielding, twisted pairs of wires, etc. And they don't even contain a lot of copper.
No, Fiber cables are really cheap. They are basically just glass with some reflective coat.
It is just that the connectors and more importantly the work of attaching those connectors to the cable that makes them expensive. They need to be welded in a dust-free environment, and require lots of skill to get right.
Also, copper cables capable of transmitting high data rates aren't easily manufactured either. Think of shielding, twisted pairs of wires, etc. And they don't even contain a lot of copper.