Precious and valuable metals like platinum, silver, gold or palladium are used by most countries like the United States to mint their coins that can satisfy the demand of the investors who want to purchase these kinds of metals in a recognizable form or weight.
A lot of investors sometimes choose these precious metals to protect their savings instead of changing to paper currency values. The value of the U.S dollar and other currencies can be very volatile, but the value of the bullion is inclined to be more stable in the long run.
For example, when the dollar’s buying power crashed, the buying power of precious metals like gold, silver, platinum or palladium increased. What is good about it is that the market value of these precious metals doesn’t fall to zero compared to their fiat money counterpart.