Dragon allows you to get a bit of freedom of movement.
There is absulutely no need to be virtually chained to the keyboard and mouse, since you can do so much by voice. Even with a wired headset you can lean back in your chair, while being productive.
And a wireless microphone allows you even greater freedom, because you can dictate while walking around.
To prove that point I created this video, where you’ll find me roaming around some spaces in my office building while dictating.