Used since I learned to use Mouselook in Quake.
For months I used keyboard only in Quake. Friends tried to get me to use the Orb, I tried it, it certainly made moving easier since the keyboard to look up or down I had to use the page up and page down buttons

At the time orb was around $50+, so I had no interest in using it, so for a week I struggled to learn the mouse. It was just natural for me to move forward and back with my right hand since that is how I was doing it already with the keyboard (arrow keys)
