Immortality

I just watched the "making-of" 300 special (thank Tim for the telling me about it). They talk a lot about how the Spartans spent their whole life looking for something worth dying for, and it got me thinking. I wonder if the world was given a choice, would they trade not having anything death in return for not having any new life? Everything was just here, and you could live forever, as could everything else, but in return, nothing was ever born. That seems like it would be a pretty boring existence. Maybe that's why the creator made life the way it is - to have a more fulfilling and entertaining way to pass the time.