Gamespot has an article discussing the realities of Virtual World economics
as they pertain to the real world. World of Warcraft is used as an example throughout, and they quote some staggering statistics that remove any last shred of hope that Blizzard's bluster may be having an effect on the gold market. From the article: "Sukow discovered that the top seller of WOW gold made more than $23,000 in April, just on WOW gold. And that wasn't even a good month--in January and February the number-one seller took home more than $44,000 each month."