As an Australian vaguely familiar with Australian Consumer Law, which has been mentioned a few times here and would apply to this product, the word to remember is “reasonable”.
Would I be disappointed if a computer I was still actively using failed? Yes. Did I reasonably expect that computer would last ten years when I bought it? Definitely not.
As you drive around, if you look at the cars around you, they’re going to be (on average) ten years old. There are older cars around, which proves that cars can last longer, but when you buy a vehicle, you don’t reasonably expect it will work forever. Even if it does, newer, safer, more power efficient models are released that make it uneconomical to run your car. When enough people get rid of them, they become even more expensive to support, and companies eventually stop making parts.
Does new cars being safer and more efficient make yours less safe and less efficient than when you bought it? Course not, there’s no planned obsolescence there. Should a company keep making parts just for you when no one has that model anymore? Course not.
You mention worrying about the environment, but continuing to manufacture parts with low yield, and taking up additional land to keep these machines running also seems counterproductive.
