Because it is real and true money. Silver and gold have been used as money for thousands of years. Every single fiat currency has failed and the USD is coming to its final showdown. Debt is skyrocketing, nothing from 2008 was fixed and no one was jailed, all of the problems from then have only gotten bigger. The only reason the stock market looks good right now is because of Quantitative Easing, literally taking US taxpayer money and funneling it into the stock market. This is a game and charade that will not last for too much longer. Everything has a beginning and an end.
Crypto currencies are a new invention of the past decade, like a pheonix rising from the ashes of 2008. I do believe in Bitcoin as real money as well in a digital world and silver/gold for physical money. I think both silver bugs and cryptos have it right, they both have a common enemy - the FED and any other Rothschild or fractional reserve, inflationary money or bank.
The silver and copper rounds below depict the pyramid of central banks and their leaders and followers. It is a symbol of the greed and debt that we are all used for.
These are sold out at Golden State Mint, however you can own a piece of the Silver Shield collection from the currently available pieces here:
I support silver, gold, and cryptos. Good luck out there!