This:
Originally Posted by
roberino
There is world shortage of helium right now, so probably not financially viable.
and this:
Originally Posted by
sbm12
Airship Ventures was operating in California for the past few years, both from the San Francisco and Long Beach areas. They closed up shop recently.
...pretty much sum up the chances of ever seeing airship tourism ever, uh, getting off the ground. It's a romantic notion but one that'll have to wait for a billionaire who is really into steampunk before it ever happens again.