Most web content I've consumed in my lifetime is already lost, many floppy disks and burned CD-ROMs I held onto are now unreadable, and in 200 years, the situation will only be worse.
But I can go to the British Library and read a 1000+ year old text without much difficulty.
From: https://archive.org/about
> A single copy of the Internet Archive library collection occupies 145+ Petabytes of server space -- and we store at least 2 copies of everything).
Thankfully they have a few backups around the world, but there are still plenty of plausible events which could render the data useless. In contrast, physical mediums like books, vinyl records or microfilm/microfiche can last for hundreds of years.
A lot of old printed books were done on acidic paper, causing them to more easily disintegrate. Disintegration of acidic books can mitigated by brushing alkaline powder between each page, and by keeping very low humidity.
The switch to alkaline paper substantially changes the smell, much to some readers' dismay. But be sure to look for alkaline prints, when available.