You've left out the fact that one is a physical commodity with intrinsic value, and the other is the right to say you have the solution of a useless math problem.
Indeed, the point is that bitcoin's supposed purpose has pivoted from being an actually useful means of exchange to a 'store of value' akin to gold. Which doesn't really work as neatly as the original idea (which hasn't worked, not helped by bitcoin effectively ossifying into a version which technologically can't achieve the original vision).