This is why I work at archive.org. Is it perfect? No. Does it have value to society? Absolutely.
~~I'm also worried about the deletion of old pages on archive because new owners of a domain update the robots.txt file to disallow it, which I've heard wipes the entire archive.org history of that domain. I hope that gets addressed.~~
Edit: this is no longer the case
https://blog.archive.org/2017/04/17/robots-txt-meant-for-sea...
Including the part where they blamed anyone but themselves for hiding old snapshots when robots.txt changed?
It was possibly a worthwhile fight for someone to have, but not for the site that hosts the Wayback Machine. Separation of concerns, my friends...