Of course we do use paper as money today, but only because it recently served as a receipt for actual money. Paper money (currency) historically has a half-life that depends on a number of factors. But it rarely lasts longer than the government that issues it. Gold is the best money because it doesn’t need to be “faith-based” or rely on a government.
The bottom line is that gold and its friends are no longer cheap, but they have a long way – in both time and price – to run. Until they're done, I suggest you be right and sit tight.