Unless you’re going to continue supporting updated software on existing devices until the end of time, there will always be a place on the time and feasibility

Unless you’re going to continue supporting updated software on existing devices until the end of time, there will always be a place on the time and feasibility curve where you’ll have to draw the line. So while that is indeed a plan, or becomes a plan as a device ages and practical realities begin to assert themselves, attributing it to a sort of corporate greed or malice seems reductive.