Quoted from swampfire:
The question is whether they are testing them enough to prevent obvious problems from slipping through.
As soon as you get a new or used game, you should do a sanity check and reseat all the connectors, and look for any loose parts or screws - before you power up.
Whenever I get a new power amp, I always pop the top, reseat the boards and tighten the power screw lugs. 2000 miles of bumps and thermal cycling has the potential for disaster, especially when the product draws 18 Amps....