It seems his creator Facebook, Mark Zuckerberg desires the protection of his private life, which is contrary to the terms which uses his website. THE Zuckerberg lives in one of its nicest neighborhoods Palo Alto, in a home which he bought two years ago.
Along the way, he discovered that his neighbors were disturbed and decided to buy all the houses around his own, so to secure the protection of his privacy, as the Mercury News.
Ο Zuckerberg originally paid 7.000.000 dollars for the house that stays today and over 30 million dollars for the other four he bought to expel his neighbors. Of course, 14 was sold for millions of dollars, much more than its objective value. Obviously, he really wanted to stay alone.