Earlier quoted context omitted.
WoW also offers a lot of free months to players. Sign up a friend, both of you get free months. I almost said "and WoW isn't the best damn product," but that depends on your definition of 'best.' It almost mirrors the Mac/Windows thing. Connoisseurs tend to scoff their noses, yet they just keep on selling... WoW is a mediocre product executed _perfectly_.
http://www.metacritic.com/search/game/world+of+warcraft/resu... Define mediocre.
WoW is the gold standard of fantasy MMOs. It just doesn't do anything new or interesting; it only does a small set of things, but does them very, very well.