It's kind of sad that their reputation is built on fanaticism and anticipation rather than good old fashioned game making. Everything they make is shit, yet people still buy their games that take 15 years to make.
Wait, what? I'm no Blizzard fanboy, but they happen to make rather good games that hold up over time. People still play Starcraft, Diablo II, and the Warcraft games. Not to mention, they have WoW to their credit.
You may not like the games they make (I don't care for WoW, myself) but they must be doing something right, having revenues of over a billion dollars a year.