I'm sure you had an array of considerations when buying an electronic safebox, but this is the bottom line as to why I would never buy one.

As a programmer my day job is "this isn't working the way it's supposed to, lets figure out why and fix it." I can't fathom ever wanting to deal with that stuff when I get off work. A lock and key have been working just fine since the Roman times, it's relatively easy to conceptualize how it works, the things you can troubleshoot on it is a relatively short list, the UX surface area is small and predictable (it's just a lock and a key). I could go on for a long time. If something got along just fine before bluetooth and wifi existed then I never want to own a version that requires bluetooth or wifi.