Dude, if it plays at all (regardless of dead monitor) than he made out like a bandit. I've heard PP2 boards go for bank. 'Round these parts, a fully working PP2 might garner $350-$500.
funny thing is a PP II board could sell in the $250 range by itself but the entire game in working condition is probably a $200-350 game. Sadly the parts are more valuable than the game as a whole.