SOMETHING is going on in the market. Re: precious metals.

[ProfessorGAC]

34. Likely A Goal

As demand goes up, the cost efficiency of making graphene should improve substantially.
It's a highly energy intensive process so it will never be "cheap" but as it's possible to make to meet demand, unlike mined metals, the supply of which is finite). It will likely always be cheaper than silver, until enough graphebe is used to greatly lower demand for silver.
Graphene not only has better conductivity, but electrons actually flow through it faster than metal wires.
Every little bit of speed is probably a big deal to the tech manufacturers.