I use B2 as the backend for my personal backups using restic (which I would highly recommend https://github.com/restic/restic ). I don't have a ton of data to backup, so even with hourly backups (restic only backs up when there are changes) I have ~100GB and it runs me a whopping $0.60/month. I almost feel guilty when I get the bill. But the minute I need to pick a storage platform in a professional context I know wh…
https://www.backblaze.com/cloud-backup/pricing
It's still a pretty good deal though...