Makes me leery of even trying it (what other things are they covering up?) or moving my tens of petabytes over there, despite my intense interest.
[1] https://cloud.google.com/storage/docs/nearline
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
Each of the services on the list have their upsides and downsides, and none of them are anywhere near apples-to-apples.
What they all are are cloud-based key-value storage, each with their own tradeoffs, including price. So include all the major ones so your clients can make an informed decision and you don't look like you're completely unaware of your own competitive landscape.
Otherwise, you're just picking & choosing whatever metrics paint you in the best light, which is what would make a prospective customer (like me) or of mine leery.
It feels like you're either unaware of the competitive landscape (unlikely) or intentionally skewing the story, or both. And that will scare off potential customers, like me.
B2 is exciting! You're doing something innovative! I'm interested! Just tell your story, don't hide the things that make you different, and let the clients choose.
B2 is very competitive even with those other services listed - and it makes you seem more credible.