Perfect for medical image data
PACS (Picture Archiving, Communication and Storage) systems need exactly this sort of storage for radiological images (especially CT scans - typically now 0.5 GByte per study), and if/when pathology whole slide imaging takes off, than could be up to 1TByte per slide. All this needs a lot of access initially, but with rapidly decreasing usage over time, and a requirement to keep for X years (varies by jurisdiction), so migration to this sort of system would be perfect.
So - who would like to sell these systems off the shelf?