Not to mention the fact that some extended warranties weasle out of doing their job when the time comes to pay up.
We have a maytag dishwasher and bought the maytag "dependability plus" extended warranty with it. After several repairs for the same problem - one the repairman said he sees all the time - the company said we had exceeded the pay-out limit and they would not cover anything more. Then to add insult to injury, they keep mailing us requests would we like to re-up.
The "plus" in dependability plus must be plus to their bottom line.
We're not going to buy anything from Jenn-Air/KitchenAid/Maytag/Whirlpool ever again.
A better way to go is to buy the appliance warranties from your utility company. Nice to have one number to call for a variety of item repairs, and to know it will get fixed as long as you keep paying the monthly fees.