i've got 38,080 on my 2005 ..
buying the ESP isnt a bad idea. it covers 500 parts that could break.. which pretty much covers the engine drivetrain suspension. pretty much everything
if your truck has power windows etc. it covers the motors. the door speakers are covered all A/C components.
i think you can check out the Ford website for more info.
i have the 75k/5year ESP plan havent had to use it yet.