I used to be a big proponent of gold and silver but I don't see them going to those valuations.
Crypto currencies are the future.
Unless we will see another exchange hack or some other shit news will cause bitcoin price to go down by 50%.
With gold or silver you don't have to worry that gold exchange could be hacked,
because the gold derivative price is fixed by colluding bank cartels and the underlying physical gold isn't there any longer anyway. The whole PMs market is one giant, global Ponzi scam.