As the title suggests, I have two MBP that I am retiring, and buying a 13" MBA within the coming weeks. The first MBP is a 13" that is quite scratched up, and has 2 dents in the front cover, and a few stickers that I'm sure I can remove. The battery also no longer holds a charge, so it always has to be plugged in. Its the 2010 model, so it has a core 2 duo inside. The back is also quite scratched and missing the 4 black bumper things (I don't even know how that happened). The computer itself works fine aside from the physical damage... The second MBP is a 15" from 2009, also a core 2 duo. This has a dent in the front cover, when a moron dropped a coffee mug onto the closed laptop...but that's aside from the point. There are a few tiny scratches on the back, but that's the extent of the damage. Both laptops are 10.8.4. I realize that my 13" is pretty much junk, and the 15" is not far ahead. My question, is what can I do with these laptops? If possible, I'd like to make some sort of money off of them to go towards buying a mba, but I'm not sure they're even worth anything. Any help is appreciated. Thanks.