Wikipedia isn't just useful as a repository of information. Its useful because editors are constantly adding and refining the information within. Downloading a singular instance of the site is like owning an Encyclopedia. Diminished utility year-by-year.
Thanks for this PSA, it's stunning how we used to have encyclopedias in our studies but now no one collects the physical offline copies (which includes an archive of Wikipedia)
I've still got my dad's 1957 encyclopedia in a storage closet somewhere. Another one from 1981 is floating around somewhere. But they take up enormous amounts of space and don't do a great job of self-updating, nevermind searching or re-indexing.
I think at 120GB that is the with media version. You can also get a medialess version as well. There's a wiki for how to download wikipedia if you want more info: