I’m not sure what you mean by no moving vehicles, or you mean custom vehicles?
The airport has moving vehicles. They are visible in the videos. Custom vehicles would be nice, but they’re pretty rare for now (I think I saw them only in Kristiansand by Gaya?)
Also, I wouldn’t say 20€ is the higher side of the price range. Many large international airports are closer to €25. For an airport of this scope, I would say it’s (sadly) the lower tier of price.
We can debate on whether most prices are a bit over the top nowadays, and I would agree there, but that’s what a decade in a niche has done. Hopefully they’ll lower in time.