Of course, if this is the kind of thing that interests you, you not only already know about it, but are currently in line for it. Queues in North America alone have reached 15,000, meaning that at one time, there was $375,000 waiting to be poured into Blizzard's coffers. Our friends at WoW.com note that "If queue numbers in the Store are correct, Blizzard is making over half a million dollars an hour on the Celestial Steed." In other words, it's already a resounding success. All we can do is hope that Blizzard finishes developing StarCraft 2 and Diablo 3 before shifting its operations entirely into the fake horse business.
Update: What does WoW.com say about the number of people in the queue? It's over 70,000!