Virtual asset sales are big business and the scope continues to grow as MMOs become more popular.
When Club Neverdie, as asteroid space resort in Entropa Universe, sold for $100,000 it was major news. The fact that it is now valued at over $1 million in value and generates a monthly income for its owner is even bigger news.
Character, item, and currency sales are also big business. There are fears that the sheer volume of sales may eventually invite government regulation or even taxation.