We are both right. Warranty = insurance = tax on fearInteresting take. I don't find it so much a tax as an insurance policy. Vaguely similar to purchasing put options for your portfolio it just helps to cap your downside risk.
The only difference is that all warranties are optional, whereas some insurance is not. For example, insuring your house against fire is just common sense. So is insuring your family's income stream while people are depending on it. But insuring a toaster oven or motorcycle suspension... not so much. The downside risk should be affordable otherwise you're living beyond your means.