GM Extended Warranty - should I?

Hey guys, my wife and I just purchased our new 2009 Malibu 1LT. The dealer of course offered an extended warranty on the bumper to bumper coverage for about $900.

Now in the past, I have always figured those warranties were worth nothing because the dealer wouldn't honor anything.

What do you guys think? I bought this car based on it's reputation, safety and features (OnStar, etc.). I'd like the peace of mind but do you think the factory upgrade in warranty is worth the cost?

Thanks for any opinions/experiences.