Not only are prices up, the Major Hard drive manufactures (Seagate, Western Digital) have cut back a lot of their warrantees to only one year. Evidence suggests that the spinning disk manufacturing companies are reluctant to invest in aggressively building supply/plants because of the transition to SSDs - the market demands for Hard Drives will be met - but nobody is expecting explosive growth will continue to grow.…
They're already moving into the datacenter as well.
They've been there for a few years already at the high end. EMC sold my former employer 2TB of SSD SAN back in '09.