It's a good thing the Plaza's penthouse #2002 went into contract the week before Charlie Sheen's room-destroying rampage. Just think what the PriceChoppage would be if it had taken a little longer! As it is, PH2002 didn't do so well for itself. The 2BR, 2BA apartment hit the market last year asking $6.5 million, chopped to $4.995 million in February, and found a buyer in late October. The closing has hit public record, and the final sale price?to buyer Kenneth J. Anderson as trustee of the Arden House Trust?was $4.6 million. That's a 30 percent discount. But maybe that makes #1513 feel better.