Do you have source/more info than that?
Lets say the internet archive is 100 PB [1], that's 100,000,000 GB [2], and at that rate it comes out to $200 million [3] for the whole thing forever. That's a lot of money, but also a lot less than I was expecting for something like that.
[1] https://www.protocol.com/internet-archive-preserving-future: "The web archive alone is about 45 petabytes — 4,500 terabytes — and the Internet Archive itself is about double that size (the group has other collections, like a huge database of educational films, music and even long-gone software programs)."
[2] https://www.google.com/search?q=100+petabytes+to+gb: "100 petabyte = 1e+8 gigabytes"
[3] https://www.google.com/search?q=1e%2B8+*+%242: "1e+8 * (US$ 2) = 200 million US$"