One use case to consider is that your successors in interest are the ones doing the spending. I.e., you are dead. It would be such a shame if they typed the pri

One use case to consider is that your successors in interest are the ones doing the spending. I.e., you are dead. It would be such a shame if they typed the private key into the family's malware-infested Windows PC and then wondered why the balance was zero. A hardware wallet firewalls your loved ones from that risk.