So your main complaint is, literally, that it is 'too popular'.
I'm sorry, but that's just silly to my thinking. Sometimes things become popular for a reason, not always mind you, but sometimes. This is one of those cases. Starcraft is popular because it's damn good, and judging from what I've played from the Starcraft 2 beta, it's likely to continue the trend of being damn good to a new generation of gamers.
Could Blizzard lax off and release a subpar product relying solely on the brand name recognition for advertising and sales? Sure they could, plenty of other studios have done that and will continue to do so for years to come. But this is 'BLIZZARD' we're talking about here, the developer that continues to release patches and new content for games they released over ten years ago. I know it's been quite a long time since they released anything new and everyone and their pet dog likes to bash World of Warcraft because it's the cool thing to do on the internet, but we're talking about the only developer I know of which has not once, but *twice* canceled production of a game not because they ran out of funds but because the games in question didn't live up to the developers high standards. And we're not talking about games that were still in the 'what if' phases here, we're talking once which have already had years worth of time and money invested into their development.
If there's any developer out there who you can trust not to release a sub-par game, I suspect Blizzard is it! I'm not even a huge fan of em, never did buy Diablo 2 for example, just borrowed it from a friend. But damn, they've got one of the best reputation in the business.
Besides, as mentioned, I've played the Starcraft 2 beta. Not really to my tastes, I never was into Starcraft multiplayer. But I'd be lying if I said it wasn't one of the most slick and polished games I've ever seen and, amazingly enough, this is still considered a beta! Sweet Bouncing Balloons Batman, that's insane!
One game can't appeal to everyone though, no matter how polished. Maybe you're just like me and don't really suit the multiplayer scene? Doesn't make the game itself any less amazing, just not my style and perhaps not yours either. No shame in that!