I've always subscribed to the Consumer Reports view on extended warranties. Most all of the time, you're just throwing your money away, so if you just save that money (and say put it in a savings account), you will end up better off in the long run. They did list a few exceptions. I've never purchased an extended warranty on anything in my life except a very expensive laptop, and it just happened to pay off...that was one of the CR exceptions.
After replacing two intake manifolds in my Bonnie, I was almost tempted to get one for the Goat, but once I thought about it both of those replacements would have been past any extended warranty I could have purchased for the Bonnie anyway.
After reading this forum, I'm terrified to take my car anywhere for service...especially the dealer.