And for most items that’s not too big of a deal. A returned textbook or toaster can be re-sold after it’s been opened without much fear that it’s been tampered

And for most items that’s not too big of a deal. A returned textbook or toaster can be re-sold after it’s been opened without much fear that it’s been tampered with but I’m not sure the same can be said for a hard drive. Or maybe it’s more like a bottle of medicine. Even if it’s exceedingly unlikely that it’s been tampered with I’m not going to risk it if the manufacturer’s seal is broken. It’s just not worth it.