It is easy to see how profitable their stuff can be.
My grandson accidentally broke my 15.6” laptop screen, I got a new one for 50 bucks.
An iPhone screen is 100 bucks.
Back in the start of this decade, I read an article that stated the iPhone 4 retailed for $699-750, and had a little under $136 in components and labor.
They have better profit margins then drug cartels.
There are "screens" and there are "screens." A generic screen for a $350 laptop is nowhere near the quality of screen put on a TOUCH SCREEN IPS retina display Apple iPhone. . . but in actual fact, I replaced an IPS iPad touch screen for $16.50, including the tools to do the swap out, so you really don't know what you are talking about. A Retina iPhone 5S screen is a little more because the LCD and digitizer is included: $24.50, including tools.