We used an Airship Industries 600 to provide an airborne camera for a televised cricket match from Lords many moons ago.
It was a lovely machine, very pleasant to fly in and powered by Porsche flat six car engines that sounded very nice, and with ducted fan pods. It took about 40 mins to get overhead Lords from Cambridgeshire but about 2 hours to get back, against headwinds.
And it required a large ground crew of about 10 people and a mobile anchoring mast vehicle in order to take-off and land. I can't see how airships will give a commercial return.