Gold is another store of value, but not that unstable. It reached 2000$ recently and was above 1000$ for many years. Those who invested in gold back in 1900 would have made a great choice since it costed only 20$ back then if I'm not wrong. (Although dollar was way more strong than now)
Bitcoin can lose 500$ within one night. Gold can't. Why that?
If you go back 50 years gold price always stable. It price Don't changes huge. If you go back 5 years bitcoin price huge increase. Yes it price can be huge down but not it possible 500$ cause today world economy effected in bitcoin price. Today if you buy gold after years you get some profite but bitcoin can give you huge profits.