I'd go further and say, mechanical knobs dials and switches can be operated without looking at them. with touch devices, i have to look at them, both to find

I'd go further and say, mechanical knobs dials and switches can be operated without looking at them. with touch devices, i have to look at them, both to find what i want to do, and verify what i wanted to happen, happened. Fundamentally, they're not obsolete. These are features that can't be duplicated without some clever additional device.