I always have a problem with having storage costs waived about. If you have papers that need fireproof storage, you probably already have a safety deposit box. Adding some metal to it costs nothing extra. If you have nothing that needs off-site storage, you probably don't have much physical things of value, anyways. I keep a backup of my entire music and photo collection in my box. A couple of microSD chips. Some deeds to real property, which I need to keep fireproof, so I would have the box anyways. I have no jewelry, but many women do. They might keep the high value stuff in the box.
If you have a lot of silver, of course, this won't work. On the other hand, if you are going to keep metals as a form of saving, you might choose to go with higher value metals, such as platinum or gold. A roll of nickel sized coins would melt at around $9,000 USD for platinum, and around $25,000 USD for gold. $50 a year for a 3 inch box, with room for a car title, a mortgage deed and a few microSD chip (and a chip reader), still leaves enough room for a few rolls of "nickels" (or expensive jewelry).
Security and fire proofing papers and backups, all at the cost of 5 fast food meals a year. Seems worthwhile to me.
