This answer is a little lateral to the question but I hope it's of some value to you. Let the kettle die it's natural death.
Kettles burn up huge amounts of energy to heat a couple of cups of water. In fact, it's so much energy, that in the UK the power grid has to spin up extra turbines in time with the ad breaks on Eastenders at certain times of the day. Those times being morning and afternoon tea.
Consider instead heating your tea / coffee in the microwave. If you already have one and only use it for heating up leftovers this would count towards "multiple uses" for a device. They are very power efficient, though a little slower at heating a single cup of coffee.
I would have to be on the side of purchasing the better product and personal productivity. If and inevitably that pc. of equipment/appliance breaks I would find a local, a drive by drop off or yes, dispose of said item. Some items I keep anything that can be uses in another or similar pc. Of equipment/appliance.