My experience with extended warranties is that they have been a waste of money.
The last one that I purchased (on a big screen TV), I didn't have to use at all and 6 months after it expired....guess what???
I didn't get the extended insurance on my '04 and it has not really needed and service (due to a breakdown).
In years it's technically over 5 years old but it only has 8500 miles on it so the extended warranty would not have been a good investment for me, so that's money ahead for me, but I'm flying without a net.
