They had some really cool stuff there.
I actually witnessed the guillotine chopping a wing off on one of the tours. It was sad. All that money to build them, and they were chopping them up. Not only that, but even historically significant B-52s (NASA related, or otherwise) were being chopped.
I think the tours are run out of the Pima Air Museum now (at least they were in March of 2003, when I last visited).
IIRC, the B-52s were being chopped as part of an arms limitation treaty with the Soviets, and they monitored the process with their satellites. Looks like the chopped airframes were permanently left in place as a condition of the treaty.
Wonder how many Tu-95s got chopped by the Russkies? They’ve been building brand new Bear bombers so it hardly matters.