Backblaze's data may look like making your next drive a Hitachi is a no-brainer, but it's important to remember that Backblaze runs drives harder than the average PC user ever could. So while Seagate products may go down all the time at the company, a PC user may never notice a problem during the lifetime of their PC.
For example, Backblaze said it will stop buying Seagate LP 2TB drives and Western Digital Green 3TB drives, because they just don't work in the company's environment. Part of the problem, Backblaze says, is these drives are designed to spin down when not in use to save power. That's a great feature for a home PC user, but in an industrial environment Backblaze says the drive would spin down only to spin back up a few minutes later. The end result being more wear and tear on the drive than it was designed for.