Actually it's depends how you want to take a kind of a risk, gold and bitcoin, both is the best investment so far, bit the risk make them different, obviously bitcoin have high risk, instead the profit is high too. Comparing with gold price recently the price reached $1,200+ with stable movement it's good to use as a long term investment with low risk.

Personally I choose both, but more keep bitcoin, it's have a surprise market and I loved a surprised.