My thought on this has always been: if you care about your data (family photos, music), then you should spend the money to get new drives
But a lot of people hate this, and argue that if your backups work properly then you can buy any HDD you want regardless of abuse or how old it is.
I just want my shit to work and not have to worry about it so I buy new
I have Exos drives (which are probably more enterprise 24/7), and I don’t really see a difference to normal everyday consumer use HDDs. They’re just loud af, which is honestly a huge drawback
That said, I’ve only ever had one HDD fail, and these have only been running 24/7 for about a year
If they’re not that much more, might be worth it for the NAS drives. Just depends how important your data is and how much you value peace of mind