I hardly ever post on blues, and I limit myself to just skimming the articles and comments, but I have to say the level of narrow mindedness on this forum is through the roof.
Starcraft II was built from the ground up as a multiplayer E-Sport game, and hence by design, does not contain a lot of fluff that other RTS games pass off as "innovation". There is an extreme emphasis on timings, micro and macro management, unit control, positioning and things like that. And the community for it is much larger than anything you have ever seen before.
Most other RTS games that have come out have failed miserably to provide a sustainable competitive environment because there are too many automated things, and innovations that actually break the game and decrease the emphasis on player skill. Where other games have failed, Starcraft II has succeeded.
I'll just leave this small teaser for a documentary thats coming out this year.
http://www.youtube.com/watch?v=VchuKnJONSkNo other game can even claim to have the same kind of fan following or support like this.