Does anyone other than me have your computer in the same room with the musicians?
Touch screen gives silent control while tracking.
Th3
Faders
Gains
Spectral analyzers
EQ
Compression
Expanders - useful for quieting Mics when the band stops
Scrolling and zooming to inspect wave forms
Touch is useful on other apps too
DigiCheck
TotalMix
And you never forget what the control is mapped to.
I do prefer a midi foot controller for enabling stomp boxes, but you can use touch for it. Tends to be a double tap. For example, in the video linked above, at 1:40, the user attempts to solo a track but only sets focus. He then solos a different track. The same sort of thing happens in Sonar. He didn't say out loud, gosh, I though that would solo and it didn't, but to me, it looks like that was his intent. He clicked precisely on the solo button and it didn't solo.
At 22 mins he switches to the mouse.
Idk... I applaud the Sonar developers who did a slow roll into touch. They have been thinking and adding and tuning touch for years now. I really like it. I look forward to how they will release the ability to work in PRV or with envelopes using touch.
I still use the mouse a lot. I expect to continue to use it a fair amount. For me, giving up the mouse provides me no real value. Heck, the mouse isn't precise enough for setting some values. I often double click a param and set it exactly where I want it using the 10 key.