The closest thing to a viable use case for airship cargo is the one Cargolifter was aiming for, getting objects too big for roads to landlocked destinations. An

The closest thing to a viable use case for airship cargo is the one Cargolifter was aiming for, getting objects too big for roads to landlocked destinations. And the challenge that comes with that was illustrated quite well by Cargolifter: starting with a small craft and sizing up with experience is impossible because for loads fitting a road ground based transport will always win. (I'm sure that CL160 would have changed the economics of wind power forever, but they were too early for that use case to materialize)