I'm with you on every one of your preference points. My own extra one is that I spend all day every day at work on my Mac, when I want to relax and work on music I want to physically separate myself from the thing I do my work on. I embraced touch in the first place just for that, but now I'm infinitely more productive for music on my iPad than I am on desktop. I can reach a state of flow that's just not there when I use Logic on my Mac.