Apple Buys HP Campus

"Apple has become the largest landowner in Cupertino, Calif., the city which headquarters the computer and media giant. Apple recently purchased for a reported $300 million a 98-acre campus which formerly housed Hewlett-Packard. The site adjoins Apple's 50-acre site it purchased in 2006."

Back to their roots according to Woz in this interview, since most if not all of the early Apple work was done on this campus in the calculator division.