I made a conscious decision to avoid extended warranties, more than twenty years ago, unless there was good reason and I've never regretted it as it's saved me a small fortune over the years.
Whenever we got married we were getting almost everything for the house and the warranties would have been an awful lot of money to us back then so I decided not to take out any and put the money I'd saved towards any repairs that were required.
Most of the time they're exorbitant too and the best example of this was when we bought a washing machine a number of years ago.
The washing machine cost Â£199 and sales assistant insisted on getting me the warranty details despite me telling him I wasn't even remotely interested.
It turned out the extended warranty was Â£230 and I remember the look on his face when I told him that if it ever broke down I could buy an entire new washing machine for less than he was charging me for the warranty alone!
Anything unreliable though is a different matter such as colour TVs in the very early days (which is why the TV rental places thrived back then) and camcorders when they first came out.
I honestly can't remember ever taking out an extended warranty in the last twenty years though.