Because the media is biased in favor of Barack Obama..
Look what they did to Hillary. Almost every leftwing outlet picture of her was unflattering.
Every picture of Obama is so flattering and so frequent.
10 networks reported Obama's speech and got 40 million viewers.
Palin's speech was reported by 6 outlets and she got 37 million viewers.
She is not going away anytime soon so get used to it.