SSD prices plummeted by 48 percent over the past year.

The Verge:

Overall, the statistics show a huge 48 percent drop in the average price of a flash storage drive. Several models finally fall beneath the hallowed $1 per GB threshold, making them a viable alternative to regular hard drives.

Good news.

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OS X Daily (Link)

Seagate Reaches 1 Terabit Per Square Inch Milestone In Hard Drive Storage.