[brownsfan]

“at this point why not just rebuild the Saturn V engines??”

They have plans, but most of the expertise is gone.

[ealgeone]

Yep....a case of use it or lose it.

[Tallguy]

“They have plans, but most of the expertise is gone.”

...along with the entire supplier base, tools, jigs and fixtures.

[BiteYourSelf]

You beat me to it.