The other point that was brought up is in cases of hyper inflation they generally don't re-issue coins, just bills. The governments just takes a zero off of things and leaves the coins the way they are. So if $50 goes to, but a nickel stays a nickel you are getting a 10x return on your investment. Not saying I agree with the thinking, or the chances of hyper inflation like that, but I guess anything is possible and that is another reason that was posted.