I think btc will get there. Gold is still the best bet because so few people have yet to hear of bitcoin but everyone on earth knows what gold is. I do believe that BTC will over take it at some point but sometimes "if you can't touch it, it aint real". But think of how hard it is to transport gold and how easy the btc equivalent of several tons of gold is to "lug" around. That is when I think the shift will take place on a large scale.