A town in Texas was sold on eBay for 3.8 million dollars. The town is 13 acres and if the bidder chooses to live there, he will have no neighbors. I think that might be a good thing if he or she is not sociable.
http://www.wkyc.com/news/watercooler/watercooler_article.aspx?storyid=78616
http://www.wkyc.com/news/watercooler/watercooler_article.aspx?storyid=78616