It’s all about the future of virtual items and property rights.
Source: Is your online game gold real? | Virtual Navigator
and: Is your online game gold real? Lawyer tackles the issue – Twin Cities
RE: Kwong, Justin A. (2011) “Getting the Goods on Virtual Items: A Fresh Look at Transactions in Multi-User Online Environments,” William Mitchell Law Review: Vol. 37: Iss. 4, Article 2. Available at: http://open.wmitchell.edu/wmlr/vol37/iss4/2
PDF: http://open.mitchellhamline.edu/cgi/viewcontent.cgi?article=1419&context=wmlr