Cost per TB in datacenter (where 99% of high-capacity hard drives are deployed these days) goes down with the increase in capacity, even if cost per TB for a si

Cost per TB in datacenter (where 99% of high-capacity hard drives are deployed these days) goes down with the increase in capacity, even if cost per TB for a single drives remains the same or rises. Rack space and server prices are a big part of the overall storage costs. Doubling the amount of data you can store in a single 1U allows to pay the same overhead for double the data.