World of Warcraft generated $2m in 4 hours from the sale of Celestial Steed 'pets' to players

"If you haven’t been surfing through Bilzzard’s pet store in the past two days, you might have missed one of the new pets for WoW: Celestial Steed.
This horse has generated $2 million in a little over 4 hours and people were still lining up to get it. These figures are just based on the first four hours since the Celestial Steed was released, but Bilzzard certainly earned a lot more from selling this horse. You will have to spend $25 if you want to get it and the upgrade is purely visual because mounts don’t improve the ability of the character."
Source: GossipGamers, 17th April 2010