What are you going to damage by playing it? Seriously. If you are worried about the CPO toss a piece of plexi on it. I can understand anything could happen to a car but what could happen to your game? Unless you use a baseball bat instead of your hand to play or have violent fits of rage I just don't get it.
If you are worried about the electronics buy a new big blue, fuse block, AR caps, monitor caps, and reflow all your solder joints.