http://mises.org/daily/6435/A-Virtual-Weimar-Hyperinflation-in-a-Video-Game-World
Interesting economic analysis of the current Diablo 3 situation, where crippling hyperinflation has seen gold plummet to a ten thousandth of its real world value within a year due to the design of the economy. Yup, gold in May 2012 went for $30 for 100,000. More recently, 25 cents would get you ten million, and that's just the official price that the black marker was undercutting.
A warning to those doing this sort of thing in future. The lead designer on D3 already said a while back that the real money auction house was a mistake.