I guess being able to use petabytes as a unit was important to them. And ditto. Even if it's write-only, I have tons of data (i.e. disk images of childhood computers) that I would love to preserve forever, but don't currently have the disk space to store.
But that's the issue: they aren't using petabytes as a unit, they are using petabits
sorry I was more referring to the peta- prefix, the bytes/bits thing is exactly why I'm upset about this. They shouldn't have inflated the figure to bits just so they could put peta in front of it. This is a 200TB storage medium. It shouldn't ever be called peta-anything.