I don't think the keyboard could be described as a limitation. It gives such precise control over editing that you can look at a file and then perform complex e

I don't think the keyboard could be described as a limitation. It gives such precise control over editing that you can look at a file and then perform complex edits without looking at the screen. The mouse is probably an afterthought because using the mouse is significantly slower than the keyboard commands. When you have enough commands in muscle memory and use it as designed, it's almost like a telepathic communication with the computer. Everyone has their own preferences though.