There are even options like S3 Intelligent Tiering that enable you to store objects on S3 Standard and it will intelligently move them to lower-cost options based on the usage patterns of the data.
There are six different pricing options of S3 storage. There are EBS volumes, EFS volumes, FSx for Lustre and many other options for storage.
I used to mine BTC, currently mine Ethereum and looked into mining Filecoin and was left wondering if the people buying into it have any idea what cloud storage options are actually out there. There is so much competition and the prices are sooooo low that I don't see any viable use case for Filecoin outside of the one you mentioned about being concerned about being shut down by a single vendor.