Just remember:
Humidity and moisture are your enemy when it comes to gun storage. On a humid day, the padding in a soft side, or open hard side case will quickly reach the same dampness level by absorbing moisture out of the surrounding air. When you close the case, you now have this damp material pressing tight up against your most treasured possession. Some of the soft side cases will breath enough to dry out as the surrounding humidity level drops, but the hard side traps the moisture in, where it plays nasty games with your gun.
If you just thought, "no problem I'll just oil em up good first"
you may be in for a supprise in six months. Oil floats on water, so as soon as that moisture condenses on the metal, it just floats the oil up out of its way, then starts jack hammering away at the steel. Anything with silicone in it is even worse, as silicone quickly evaporates leaving the metal naked.
Safes have similar problems, but for some reason, people seem to be more aware of them, since cases usually are thought of as transport protection or short term storage, and safes for long term securement.
Just my
