True, but if it't not even a consideration to be procured it is an option. Hiding is the element, locking is separate.. for example if you have a locking cabinet in your garage you can store something similar to it is a keyed cabinet.. throw it in with any spray paint or other cans of half used paint you already have. Anything obvious will cause someone to "check it out".

in my bedroom i have 400 cash hiding in plain sight and my wife can't find it.. i also keep a metal box with vintage cash (not worth anything except for face value) but she missed the cash sitting right in front of it against the actual drawer front.

I agree locking would be the best, but some of that stuff is outrageously priced and not large enough sometimes.. it was just a thought.