And nicer new screens cost more money!
You don’t have to touch it?
Conceivably there were considerable technical challenges in bringing touch functionality to market, an R&D cost that gets passed onto consumers. It's not like the touch screen is just being given to us for free.
My point is I'm not sure why everyone needs to pay the premium for a touchscreen in order to get the screen upgrade when touch functionality on a laptop screen is clearly a polarizing feature (judging from the comments on this thread alone) that a minority of consumers actually want or need.
This is not just a Mac-specific thing. On a lot (dare I say most?) Windows devices if you upgrade the screen (OLED, higher res, high refresh etc) it generally also comes along with touch whether you want it to or not.
There’s only so many levels of customization manufacturers are willing or able to offer.