I mean, for a kind of museum piece, to get the true experience of using the computer I’d agree for sure just use original OS. But if one wanted to be able to use it for most functional purposes, it’s sad how the complete lack of backcompat in MacOS makes using an old MacOS tough — which is sad because new Linux often can work surprisingly fine on the same hardware. Like, current Debian on a 2008 Core 2 Duo is a fine computer that you can browse the Web and do basic office tasks on. It was shocking to me!