What was the cost of Area 51?

The exact cost of Area 51 is not publicly disclosed, as it is a classified military facility operated by the U.S. Air Force. However, the facility's establishment and ongoing operations have likely incurred significant expenses over the decades, with estimates suggesting that the total costs could be in the billions, especially given its role in developing advanced aircraft and technologies. The secrecy surrounding its projects adds to the difficulty in determining an accurate figure.