This is nowhere near the same thing as adding a mouse. I get no extra benefit from a touch screen than I can with my mouse or trackpad. Heck it's so much worse. My hand is ALREADY on my mouse and keyboard. I get NO benefit from taking my hand off my mouse or keyboard, stretching OVER the keyboard and touching the screen to scroll. I just use my mouse wheel. It is 10x faster. "Pinch to zoom"? My hand is already on the trackpad and I can do it immediately without moving my hand and making the screen dirty.My gosh are some of you guys yelling at clouds right now.
Both of these comments bring me back to the heady days of the late 80's and early 90's when people (mainly DOS users, of course) were complaining about how "needing a mouse" just to use the computer was going to be such a pain and a massive productivity suck. "Real" power-users didn't need a mouse, after all.
Fast forward to the mid-90's and the early 00's when most Mac users didn't "need" such fancy things like preemptive multitasking, protected memory, multiple users, or OS-level security. Can you imagine still using "Classic" Mac OS because Mac OS X in its early iterations was too slow and buggy for "real" users? Heck, going into the early 2000's, most people didn't even "need" always-on internet service.
And then fast forward to the mid-2000's when people didn't "need" the power of a full computer crammed into their cell phone.
Things change, dudes. Time for Apple's tired desktop OS to join at least the 2010's.
This is a different discussion than a Wacom tablet or an iPad and using that for touch. Those devices are dedicated and I have those devices for when I want to draw.