Interesting.
https://www.apmex.com/There is a number of reasons why silver is undervalued..,article does a decent job of addressing some of that, I would also add that gold is somewhat undervalued too, the PTBs like to keep a lid on PM's as much as they can get away with...sooner or later all bills come due.
Some 1oz rounds are down to 6% premiums, a level I haven't seen in a while.
You can always get "junk" silver...
I favor the 90% silver variety. The math of content to value can be easy to deal with too, for dimes at .0715oz per 14 dimes will equal an ounce, at current value about $2.28/ea. For half-dollars at .3575oz 2.8 = full ounce, get 14 of these and you have 5oz, at current value about $11.42/ea. For silver dollars at .7734oz, get 13 of these to have a hair over 10 ounces of silver, at current value about $24.70/ea.
Makes math for barterworld easier to figure out...