I got spore yesterday, they released it early here in Perth Australia for some reason. I installed it, and played it from the cell stage to the space stage, i sat down at around 2pm and finished up at 4am, and went to bed.
I'd love to come on here, and tell you you're all wrong, but honestly... i am quite disappointed, the creature stage is fantastic, and the space stage is good(but seems a little like it'll get old quick).
What sucks... is the tribal stage and the civilisation stage, they have less choice, less... customisable... 'you create the future of your species' stuff than most games... you pretty much get driven to do exactly what the game wants, and advance to the next stage.
But, all that aside, the creature stage is great, and the customisability is fantastic, i'm certainly not wishing i never purchased it, i'll still play it quite a bit for a while.
On an ending note... i have been banned from the spore online network for a week because i made this creature: Heres a video of it
:P
and honestly... that's was so worth the ban :P knowing that that will pop up on someones planet makes me smile.