See, even when people get rid of their old tech because they get a newer replacement or whatever, the old stuff is often not broken; with repairs like a replacement battery, or the option to use it without one, it can easily last over a decade. This is why right to repair laws and standardization are so important, to reduce the amount of discarded electronics, and to allow a "trickle down" kind of economics, to the point where people can get access to technology for free.