As said, it depends when you buy. Buying at the top of 2017 saw a decrease from 20 down to 4ish if I remember correctly, an 80% loss. An investor would have to wait a full 3 years to break even again. Although, they would be up now.  

>Gold has more stability because it's a more stable asset, not because mining it is harder.

I didn't say mining it is harder - much of it has already been pulled out of the ground and what is left, isn't exactly accessible to the average person. Once upon a time, in some locations, it might not have been seen to hold quite as much value as it does today. I wonder if they had to have guards to stop theft at temples and stuff back in the aztec times. Gold has a scarcity value and a well-established narrative as a store of value. Once upon a time, that narrative didn't exist, even though gold did.