CLAIM: Even including the surrounding costs—such as electricity, bandwidth, space rental, and IT administrators’ salaries—Backblaze spends one-tenth of the price in comparison to using Amazon S3, Dell Servers, NetApp Filers, or an EMC SAN.
UPDATE: Price per petabyde now down to around $50,000 not counting controllers and other peripherals. Here is a good slam on Amazon's cloud (within which CIA's mini-cloud is a virtual rain-drop): Cloud Storage Marketing Hype: Amazon Glacier's Big Claims.