Good article here, about NASA moving their $650 million mobile launcher (not a “booster”, actually) to the VAB:
I note that while Launch Control is built to survive a CAT 5 hurricane, the VAB is only rated to CAT 3. Yikes!
Maybe someone can work out how much force a mid-CAT 4 can put on a facing outside wall of the VAB. It has to be an impressive number...
My bad
Yes it is a Mobile Launcher!