I felt that way, too. One could argue that many modern GUI features are more of an excuse to use the mouse, as opposed to actually taking advantage of anything that a mouse is good at.

Even text selection, which ought to be fast with a mouse, is slow; it's hard to precisely click the end points, and the target may require scrolling in order to make it clickable. When you can do something like "3dw<return>P" (move 3 words to beginning of next line) instantly, the mouse is almost never more efficient.