On February 6, 1921, the New York Yankees announced the purchase of a ten-acre plot of land from the estate of William Waldorf Astor. The site, purchased for $675,000 and situated on the west side of the Bronx, would serve as the location of the new Yankee Stadium. Construction of the new ballpark began in May 1922, and the Yankees would play their first game in the new stadium on April 18, 1923.
$675,000? I think they made their money back.
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And then some!