You're right indeed:) but it depends on what you are comparing it with. In this case the comparison is against other managed cloud storage and databases, and in that context I think the claim holds.
Is it the cheapest possible storage in existence? No, if you take raw disks and put them in a rack, but I also feel it wouldn't be an entirely fair comparison.
Is it the cheapest possible storage in existence? No, if you take raw disks and put them in a rack, but I also feel it wouldn't be an entirely fair comparison.