And I still don't want finger smudges on my desktop display.
So, no thank you.
Not to mention how much repeatedly raising your arms to touch the screen 3' in fromt and 1-2' above the keyboard would kill your arms.
I have a hard time understanding how desktop LCD manufacturers seem oblivious to fundamental ergonomic flaws of touch on desktop screens. The closest thing to a PC I might use touch on is portable AiOs.