The power of the vi-family is that this generalizes consistently. Want to replace everything from here to the next comma? 'ct,TYPE STUFF HERE' I'm not a very accurate mouser, so with a GUI editor without sufficient vi-ness, that means I need to use the mouse to drag a selection, make sure I don't also grab the tiny comma, then start typing. So annoying.
> The power of the vi-family is that this generalizes consistently.
Absolutely! It takes learning relatively few command/motion combos before you are really cooking. The commands are fairly composable as well. I rarely find myself without being able to find a command that can't do what I want. To be fair it takes some time to learn all the commands but eventually you just forget about it and it becomes automatic.
Visual mode is way more practical because you don't always need to edit a word, you might need to edit a few words and/or things that are not words. I always use visual mode to see clearly what I'm changing.