A better mouse

It does not sound as a publishing problem but it is. One of the most useful tools in you hand at this very moment is the mouse.
May be you would consider it as being perfected over the decades but it is not.
May be you've seen those huge game dedicated pads with track balls and lots of buttons.
The ones most appreciated can detect the slightest move of you hand and react in an instant.
I've looked even to something like that but did not found a very simple feature.
What if I need to move the mouse on a perfectly straight line. A vertical, horizontal or at 45 degree. Just that ... a straight line. There is no function for that, no button, no nothing.
I know .. some applications have their own functions for that but to be fair most of them don't.
It is so simple ... just put a button there that will let the user select the direction, or even easier let the user select such a function with a keystroke.
What do you think? Does it make sense for you?