Subscription-bound hardware should be required to retain a clearly defined maintenance mode when the subscription ends or the vendor’s servers disappear. At minimum, that should preserve local physical or network control, access to lawfully purchased content already stored on the device, configuration, export, backup, and factory-reset functions. Signed firmware updates should continue for a defined security-support period, but nobody can reasonably demand eternal support.
This is technically realistic for many NAS systems and e-readers, and probably for much creative hardware. DRM may restrict copying or new downloads without requiring the device to stop reading, recording, or editing locally. Cloud history, remote access, analytics, and vendor support can disappear; functional hardware should not automatically become a brick.
Security, licensing, and support costs are legitimate objections. Still, disabling working equipment seems hard to reconcile with meaningful ownership. What examples have you encountered, and what should the fair minimum offline capability be?