What else is scare and valuable?

Community, family, critical thinking, a library, ammo, food security, water security. Silver is safe imo and no one should listen to me saying that, but the industrial demand for silver is simply going up and bankers don't want people realising you can use it just fine for peer to peer daily use.

Community is the most important though, if you're isolated where it matters then you're as good as dead already.