I can't remember the last time I played a game when the computer wasn't doing something else, I mean I have dual/triple monitor setup so that would just be a waste, normally have one screen with a browser open, and sometimes a third with full screen Netflix etc, if I am playing Civ or something equally none response sensitive. Not that I actually play many games TBH, I am firmly in the 'My computer is for making money and doing useful stuff' camp. 
