Although this is a true statement it is not persuasive in that Bitcoin (unlike a special issue comic, or any other rare thing) has specific, meaningful properties (fungibility, divisibility, durability, etc.) that interact with the world according to well known principles (Gresham's Law, Lindy Effect, Theory of Computation, Network Effect, etc.) that must be shown not to apply in order to disqualify it as the best available store of value.