I'm going to buy a used '03 C230 kompressor from some in-laws. It's got ~40K miles on it (still under factory warranty for a little while). My big dilema now is whether to get an extended warranty on it.

I started out looking into an extended warranty under the premise it would be exactly like the original (i.e. I don't pay a dime, even for an oil change). Everywhere I check they are ~$3K, and would extend the warranty thru 2010/up to 100K miles. BUT, they are not the same factory warranty like the in-laws have (they don't pay a dime, even for an oil change) - I'll be paying (or doing it myself) for the oil changes, brakes, rotors, etc. And, there's a $100 deductible associated with the warranty.

Is there any reason I should get this? I'm leaning towards not getting it, as these cars are supposed to be very reliable, correct?