They could be useful to someone. I remember in September 2017 I needed a working MacBook for college, and so I bought a late 2009 unibody polycarbonate MacBook that did not included a hard drive or AC adapter (but I already had the latter). When it arrived in the post, I immediately pulled it out, plugged it into the AC adapter and turned it on. It chimed and booted to the flashing question mark folder icon, and a big grin formed on my face. All I had to do was pop in a 256 GB SSD and max out the RAM to 8 GB, and I had a decent laptop I could use at my college campus and anywhere else on the go. It was even fine for light Photoshop and HD video editing (though I did miss the conveniences of USB 3.0 and a built-in SD card slot like on my 2012 quad-core Mac Mini, but for the latter I got a USB SD card reader that did the job nicely.) Ultimately once I got my current computer tech job and had saved up enough, I knew the time was right to get a new Mac laptop, so I took the plunge and bought an M1 MacBook Air in spring 2021.
I still have that polycarbonate unibody MacBook as part of my collection of older Macs, but I often use it for running a Windows 7 Boot Camp partition!
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