My wired Sennheisers are 10 years old. I've replaced the foam pads on them, which are still available from 1st and 3rd parties. I know someone who just replaced the pads on her Sennheisers which are 25 years old now.
I was basically called a luddite here the other day, because I thought firmware updating headphones is madness, but I stand by what I said. Wireless headphones are a solution to a manufactured problem, because Apple started removing the headphone port, and everyone copied them, as they always do. Now everyone is selling their own crappy AirPods.