3 months ago
Searching the hard drive list currently shows the Hitachi Ultrastar 2TB at $34.95 (or ~$17/TB). Sources are Amazon ($34.95) and Newegg ($96.99). Following the Amazon link, you will see a note saying "renewed".
Probably the biggest issue here are the parametric builds, especially those directed for new users. Old hands might realize that prices 1/3 of Newegg should raise suspicion and more scrutiny, but new users might not be so careful.
Searching for reports on Amazon hard drives, you will get plenty of dire warnings (especially used drives sold as new - which is not this case), but it is difficult to determine if this is more an issue of Amazon quality or Amazon quantity (are the problems equally or less likely through Amazon, but if everyone who posts internet hard drive horror stories, Amazon will certainly be the most common. Also the whole "fulfilled by Amazon" certainly encourages a "race to the bottom". On the other hand, I recently bought one (3TB spinning drive) and haven't had such issues.
Finally I should at least point out that this is an "enterprise" drive, and may well be more reliable "renewed" than a new consumer drive. Just don't assume that it is safe to turn off and on every day.