No it's like democracy - safe deposit boxes are the worst form of security for small things, except for all the others.

If you have land in the middle of nowhere you can bury shit in the ground. But that's not a realistic option for most people.

Come to think of it though, burying it in the ground is an option even if you have a little city lot. Would have worked out a lot better for the guy in this article. It’s safe from many hazards and casual crooks. One problem is keeping it dry.

Waterproof boxes are pretty bombproof and you could always nest them. That said, I wouldn't have a lot of confidence burying something in an urban environment. And, even if you're out in the country someplace, it's probably best reserved for things you want to keep physically safe long-term without frequent access.

Burying stuff is a decent option is there's something you want kept safe for decades, but if you want regular access to the stash, it's completely infeasible.