If you get trouble using a mouse, Emacs/Vi are better than IDEs. If you have general troubles with keyboards, IDEs are better.
Emacs has imho superior functionality. But if your neck gives you problem with the "chording" you use in Emacs (lots of cases with multiple keys pressed down at once), then Vi's modes would be helpful. [Edit: goldfeld's comments re keyboards are spot on. I have some early neck troubles, I might have to go that way too. The doctors tell me it is common in our profession, we sit still too many hours.]
Anyway, Emacs is really optimized for editing, not for learning to edit. I still recommend the trip.
An anecdote about the last paragraph:
I read online that Org Mode was the best thing since sliced bread. So I sat down and spent lots of hours to learn it. Afterwards, I thought -- "wtf did I just do?! I could get > 50% of that functionality from a web/iPad app I would learn in ten minutes?! Was that really worth the time?" Then I realised that I can write/edit Org modes lists almost as good as todo lists on paper; it was so far down in the brain stem it took no attention from what I was writing.