If you believe in bitcoin why would you put your money on a paper wallet and store it in a vault? If you believe in bitcoin, use it to buy and (maybe?) sell things with. Also, I don't really see bitcoin taking off for real until people are paid wages in bitcoin. I don't mean a few token cases that are synthesized just to show it can be done, I mean as a practical solution, even if it is niche.
People are not paid wages in Gold (they will again soon and we'll have the option to have bank accounts denominated in Gold) but all the Gold in the univers has a value of 7 Trillions that would be half a million per Bitcoin because Gold is a store of value and is useful and apreciated