Simple interfaces are especially useful for newcomers, I agree to that point as well. At the same time, most power-users of Emacs do not use the mouse at all. While not everyone aspires (or even should aspire) to become an Emacs power user, the question might be asked at what point it would be wise to switch from mouse-based use to keyboard-based use as you progress? Does it even make sense to first learn an interface you're better off ditching at some point as your expertise raises?
