Practically everything I've ever bought has lasted 8-10 years, so all those warranties would have paid for a new machine.
Following up on that I bought an 'extended warranty' on a Freezer many years ago. It wasn't very expensive, about £12 a year. It wasn't until about 11 years later that I found that the insurance company reduced the value of the item by 10% each year so it actually got more expensive pro rata and they didn't inform me that after 10 years I was paying for a policy that would not pay out anything. Probably my own fault to a certain extent in that I hadn't read all the small print but a bit underhand on their part in that they would continue to take money for a useless policy.