NICE Stuff for sure
If I had that many toys from a lifetime of collecting...I'd have to have a "special room" like an old friend had built into his last house during the construction...solid 10" or 12" concrete walls and ceiling with rebar welded in place at the wall joints and across the over head, with a bank vault door behind an innocuous looking closet door in the hallway for cover...but with what he had in it from time to time his Home Owner's Policy would not cover it...and it is as tornado proof as an above ground bunker can be.
A dealer I used to call on did something similar using concrete block with welded rebar inserted in the open chambers for walls and roof, anchored to the bottom of the foundation, and back filled with concrete...the place was COLD in the summertime too. Never had a successful breakin either.
"These are the times that try men's soul's"...Thomas Paine
"Those who fail to learn from History are doomed to repeat it" ....Santayana
"There's a sucker born every minute" P.T. Barnum, on why he always had customers to see the sideshow features.