This is a silly question...
We all know that gold, silver and other solid assets constantly increase in price with respect to time. It is smarter to invest in gold if you have a great amount of wealth compared to storing it in banks where inflation will eventually eat the value of it. It is more secure to invest in gold/silver, banks can go bankrupt or have anomalies by the cause of system failures.
Storing gold, silver is the best than bank deposit. Because buying a gold, silver is a very high value in market. While depositing at bank is a very risk and a low interest. Gold, silver you can used any where and anyuime you want.