ArtistsRifles is right on that note. Sadly back in the late 1950's the U.'S. Air Force began chopping up and melting down all of the WWII airplanes they had in dry storage in Arizona with no thought of saving any for museum purpose. It was then the Confederate Air Force ( Commerative Air Force now for political correctness consideration) began buying up all of the WWII aircraft they could find, including a couple of Spitfires from England, a couple of the Spanish Heinkle 111's and Me109's and of course all of the American aircraft they could afford to keep them flying and taking this flying museum all around the country. In 1992 the U.S. Air Force asked the CAF if they had a North American B-25 they could have for the Lackland AFB museum in San Antonio, Texas for display as they had none left in their inventory to add to their WWII static display. No ,government entities don't plan ahead for old military equipment for museums, it is passed down to guys like us to keep the tradition and history alive for all to see.