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?
Gold price can not huge Increase in a day but bitcoin price can be moon in a day. Bitcoin and gold currency is different. When you need gold you buying but a trader regularly trade pump or dump.