I'm a long time Thinkpad user and the integrated trackpoint allows my hands to stay on the keyboard and also move the mouse around and click on things. I don't

I'm a long time Thinkpad user and the integrated trackpoint allows my hands to stay on the keyboard and also move the mouse around and click on things. I don't get benefit of having a trackpoint detached from the keyboard. What's the advantage over having a mouse or a trackball?