I have an old 2008 Aluminum Macbook that's still kicking around. The battery is swollen/shot, the case has a few dings, and a few of the keyboard buttons are sticky. Other than that, the machine still works as expected. I'm wondering what I should do with this thing. What do other people do? Sell them for parts on Craigslist/Kijiji? Upgrade components to extend operating life? Designate the machine as a media server or something? Use it as a gigantic paperweight? I could probably fix it up myself and install Ubuntu or something, but I don't really have any use for the thing -- so why spend money on it? I've also grown accustomed to the retina screen, so going back would be difficult. If only Apple offered a trade-in program... Anyhow, I'm just curious to learn what others have done with their old machines; perhaps I can find some inspiration in all this.