Those are great services and we actually mention them just a bit lower on the page. In the chart, we're comparing apples-to-apples: real-time cloud storage services.

Nearline, S3-IA, and Glacier are all made for 'infrequent access'. All charge you for deleting files and retrieving files (on top of bandwidth.) Near line has a 3 second latency to first file and Glacier has a 4 hour wait. S3-IA has a minimum file size they charge for.

All of those restrictions might be fine...just depends on the use case. But B2 is designed to be used not only for 'infrequently accessed' files...but also for frequently accessed ones.

And all of other services are still 40% - 250% more expensive for their base storage costs.

Hope that helps. Not trying to hide anything and we'd love to have you give Backblaze B2 a try. (And to provide us feedback or ask us questions about anything else!)

Gleb from Backblaze