For me silver as a real metal, not shares, stocks and other investments on paper its so undervalued. He have huge real life utility, one its on medicine.

Never before silver was so trash compared with gold.
Over 500-1000 years ago, silver was a coin for paying tributes for example to conquerors/empires.
And the pay was in hundreds of kilograms, rarely tons.

Today, anyone can buy silver, you dont need to be millionare to have huge amount. The only problem its the supply, you need to find someone who can sell you big amount and of course you need to have some cash.