As it stands now, notifications are useful for about 3 seconds and then the go into oblivion. One can argue that's what live tiles are for, but I'd rather not pin every freaking app to my main screen. When CNN sends me a breaking news notification, the headline title does not fit, so you I can't read it. And if I miss it, I have no idea it ever happened. A notification center is useful. So I vote yay.