While there may be a few squeaky wheels on the internets complaining about World of Warcraft's server stability problems, it's hard to find a game company with more general goodwill aimed at them then Blizzard. Creating Warcraft, Diablo and Starcraft as well as maybe the most popular PC game in history will tend to earn you that.
Blizzard's new plan to own your hearts and minds: Yearly World of Warcraft updates.
A Blizzard rep told GameSpot:. "Our ideal scenario would be to release new expansions every year, and that's what we're aiming for."
As for the current Burning Crusades expansion, there's some doubt as to whether it will make its debut in 2007 as Blizz would like (they supposedly started alpha testing this only this week), but they say they won't release the game until it's ready, and for now, I actually believe them. I'll be okay waiting a few months.
Gamespot: Blizzard's goal: Annual WOW expansions