Greentext

They kinda suck, and this isn't likely to change.

The Hindenburg was 245m long, carried around 50 crew plus 60 or so passengers. It needs all that length to have enough volume to lift that many people. The laws of physics are a limitation here; even figuring out a vaccum rigid air ship would only slightly improve this (it's a neat engineering problem, but not very practical for a variety of reasons). Maybe the crew size could shrink somewhat, but the fact is that you've got a giant thing for handling around 100 people.

An Airbus a380 is 72m long and carries over 500 passengers and crew.

The Hindenburg made the transatlantic journey in around 100 hours. You could consider it more like a cruise than a flight--you travel there in luxury and don't care that it takes longer. You would expect it to be priced accordingly. In fact, given the smaller passenger size compared to the crew size, I'd expect it to be priced like a river cruise rather than an ocean cruise. Those tend to be more exclusive and priced even higher.

Being ground crew for blimps was a dangerous job. You're holding onto a rope, and then the wind shifts and you get pulled with it. This could certainly be done more safely today with the right equipment. Don't expect the industry to actually do that without stiff regulations stepping in.

Overall, they suck and would only be a luxury travel option. Continental cargo is better done by trains. Trans continental cargo is better done by boats. There isn't much of a use case anywhere.