Because slapping a touchscreen or an OLED gets you out of the inconvenience of making stuff repairable. "Just chuck it out" because it's impossible to actually

Because slapping a touchscreen or an OLED gets you out of the inconvenience of making stuff repairable. "Just chuck it out" because it's impossible to actually repair a touch screen is way more convenient and cheaper for the manufacturer to do than making their products repairable. Look at the modern disposable camera lenses. Even the most expensive ones have no manual controls, but are full of motors and displays making them way less future proof and actually unrepairable.