One thing that silver prices can show is the devaluation of the dollar due to inflation.

The image below (which is updated hourly to reflect the current silver price), shows that in 1964 you could buy a Ford Mustang with $2,368 worth of silver dimes and quarters.   If you had saved those silver dimes and quarters until 2016, their intrinsic silver value would still allow you to purchase a brand new 2016 Ford Mustang, with money left over!