A few days ago on eBay, I bought a "for parts" late 2009 polycarbonate unibody MacBook, as I needed a replacement for my older mid-2009 MacBook that I could use while at college or on the go (its' screen backlight was going bad, and I figured it was time to upgrade to a Mac laptop that could support High Sierra once it comes out in a couple weeks). I will not say the price I bought it for, but it was less than a hundred dollars, and it was a Buy-It-Now sale! The MacBook came without any hard drive or a power supply. Among arriving, it was in decent physical condition for the most part, except the rubber bottom is peeling off a bit, but I could probably glue it back on. I decided to hook it up to my power supply, hit the power button, and it booted to the question mark folder icon, which was a good sign for me. Then I took the bottom off of the MacBook and installed my 256 GB solid state drive I previously had in the old MacBook into the drive bay. I really like the modular design of the interior of the MacBook; it was much easier to get into than the old one was! And a big difference compared to my old one was the optical drive actually works on this as well! I installed my Snow Leopard disc into the MacBook once the drive was installed, and finally got it booting into the Mac OS! But the sound wasn't working (except for the familiar startup chime), and I couldn't control brightness. Fortunately, updating the OS from 10.6.0 to 10.6.8 fixed that. Then I downloaded a Mac OS El Capitan installer for the MacBook and upgraded the system to that, and then to MacOS Sierra! (As I said, my older MacBook couldn't run it.) Now I am transferring data onto it for use while I'm on the go, in addition to installing the usual apps I also use (Firefox, Skype, iMovie, GarageBand, etc.) I really like how I've got a laptop with a working DVD drive. But performance is a bit sluggish at times, but it could be because of how it's got 2 GB of RAM included. I already bought an 8 GB RAM upgrade, and hopefully it'll come in by the end of the week. I know it already boots up really fast thanks to the solid state drive. It also lacks USB 3.0 since it's older, but for college use I am fine with that for now, and I don't mind the lack of Thunderbolt and/or FireWire and an SD card slot (my quad-core Mac Mini has all that; though for SD cards I can buy a little USB card-reader stick for if I want to import from my cameras on the go.) I also like the multi-touch trackpad as well; I've used them before when trying out newer Mac laptops at the Apple Store, and helping with a couple of my friends' Mac notebooks (one of them has a brand new 13" MacBook Air, another has a 15" non-retina MacBook Pro from 2011-2012.) I also took photos of how the project is coming, so I can share them with my computer hardware lab class at my college! (Yes, I am going to the college to go for a Computer Science degree so I can work in I.T. and such.) I like how it also weighs a bit less and has a better form factor than the old one, and is also more environmentally-friendly.