[Tim7139]

Not for nothing but you can bring them back to close to new.
5-6 sheets of wet/dry paper from about 600 to 3000 grit, sand each side wet. After the fine paper, go with a quality plastic polish like Novus and a soft cloth and they clear right up.
If you have no big surface scratches Novus makes a kit with 3 grades of polish and cloth for 10 bucks