I’m still using my 2006 MacBook in a black case.
Can you upgrade the OS? I am finding that mine is increasingly useless for anything other than basic web surfing because the OS can’t be updated.
I have a couple of those, after upgrading them for my wife and daughter to newer machines. They wanted the new features in the latest OS. I'm still using them for various purposes. 3rd-party parts have gotten real cheap if ever you need to replace a part.