There are numerous problems with extended warranties, not least the difficulties of getting them to acknowledge there is a problem and, even if/when they do, getting them to pay out.
ALL of my electronic equipment and cameras are insured under my home contents insurance policy. This is infinitely cheaper than an extended warranty and longer lasting as well.
Before anyone comes along and says that you can't insure these things under home contents, yes you can. You can insure anything you want and if your insurance company won't oblige, change to one that will.