Interesting. All that firepower and it just takes one person to sneak in while he's deep in slumber and blow his head off while all of that sits nice and cozy in the gun cabinet.
Then let's say he actually does have a need for that, he can only carry so much before he is unable to even maneuver, the rest is just baggage.

Sort of like a FF cup titty, you can only suck so much at once, the rest is just a backache.