What about all the other little boys and girls that never got sued this Christmas?
Furthermore, I feel somewhat constrained to point out that they're suing over the "scalable virtual world" patent. World of Warcraft is anything but scalable! There are so many shards - more than 1,500 in North America alone by last count - that it's not as much scalable as it is "add another server Bob, they're lagging again and we need to put the newcomers on another shard!"
Of course, two sufficiently incompetent lawyers could conceivably argue their way into inventing the Internet from this starting topic, but you get my point.