Good look at virtual goods and virtual islands by Forbes;
BURLINGAME, Calif. -- What is the most you're willing to pay for a virtual item in a videogame or virtual world? Five, ten dollars? How about $26,500?
That's the amount David Storey, a 27-year-old graduate student living in Sydney, Australia, paid for a virtual island, the "Most valuable object that is virtual," according to Guinness World Records. http://www.forbes.com/2010/02/17/farmville-facebook-zynga-technology-business-intelligence-virtual-goods.html?boxes=Homepagetoprated