All mechanical engineers may not focus on same items. As a mechanical engineer I can tell you my taste that I believe is the concern if not all but of many. We love mechanisms! Like what you see in watch, gear box, Transmission etc. Even simple mechanisms like levers that operate to close car doors, petrol outlet opening, bonnet opening, seat adjustment etc. Don't they make you feel wonderful. There are many much more such things you will see in real life. Try to find how the mechanical movements happen in your daily life. None of these are comparable to electronic gadgets. But many electronic gadgets depend a lot on mechanical movements. Just open and see any Tape / cassette recorder, you will agree my point of view.