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You can write on them 24/7. DWPD isn't great, but TBW is almost limitless.

Also sequential workloads doesn't suffer from the write amplification and remain pretty high even if you are writing for hours.

Essentially no, but the difference is enough that you would use HDDs in any situations where you can afford to deal with the shortcomings of HDDs.

they don't lose information after a couple of years sitting on a shelf

they also fail somewhat predictably in some situations (they start clicking before they die) but more and more I've noticed they just stop working.