Most of the Menu and Toolbar commands in V have a keyboard equivalent (and in many cases, more than one).
To many, it may seem that a lot of the keys have been selected at random. I'd like to think that there is a bit more to it than that. Many V users have been using PCs for a long time and they all have their own preferences when it comes to utilities, and in particular, to editors.
No one wants to learn a new set of keyboard commands. Windows and CUA was supposed to fix all this, but try telling someone who uses vi all day (a lot of people still do!) that they have to press "Ctrl-F" to search, when they are used to typing "/".
Most of the keyboard shortcuts can be customized. This allows the user to define a new keyboard shortcut or to re-assign an existing one. Click here for details.