I, too, want some numbers.
how bout ? maybe e if you're feeling frisky.
all of this is relatively new, but having a way to make graphene inexpensively and reliably in any lab (the whole scotch tape pencil method) allows researches all over the world to make some and study it. As for being a "fad", as TFA states, the scientists aren't promising the next big thing, but are tempering excitement with caution.
There is never time to do it right, but always time to do it over.