You're forgetting that not everyone's life revolves around spore. Most people don't even know that the editor is out (even the newsletter only came today and not everyone's signed up for it ether). It's been only 2 days since launch, some people didn't have time to check it out yet, others don't even want to play the demo (it's only a very limited demo, why should they play a demo of a game they know they will buy?) Some people don't even know that spore exists yet...
These numbers don't represent the number of people who will buy spore. The number of creatures created is remarkable, it has been only 2 days and already 343,593 creatures! You will never even see all of them!
By that same token, not everyones life revolved around Grand Theft Auto, yet it still managed to pull in 4.2 million sales in a day.
Because everyone who is potentially interested in GTA, already waited for GTA IV.
They managed to pull 4.2 million sales in the first day, 2 million the second day, a million the next
week, and now almost no one buys GTA IV anymore.
But Spore wasn't found by its full fanbase yet.
Now a "few" hc gamers became interested due to the demo release. They will talk about it to others. Others will download it. They will talk about it to others.
Around September, there will be a million fans who will buy it at the first day.
And even after that, it will spread like.... spores.
