Solarpunk technology

Really fun and all, but it's obsolete by alternative forms of transport. Like a helicopter for example. It can fly almost always, maybe lift a third of an airship, but an airship can't fly with anything more then just a little bit of wind. The very instances where an airship prevails over other forms of transport are so few, there's no market for it. But that doesn't stop startup companies to hoard money, build prototypes, develop super awesome machines, then to discover it's useless and obsolete while having burned load of money and producing massive amounts of carbon emissions. The concept is really great, but only in perfect weather conditions. But still 3 helicopter flights could do what an airship could, but faster and more reliable. Or trains or ships. There's no gap in forms of transportation that needs filling.