I guess it depends on perspective. A bus, in simplest terms, shortens a trip. People pay to take a bus for 10 minutes to save an hour walking. It seems this escalator fits a similar purpose in the transit system of the district. Save an hour climbing stairs by taking a 20 minute escalator ride. Not identical, but similar.
It is probably nearly free to run but the per rider upfront cost is probably much higher (construction costs, relatively low ridership). It's also a fairly unique solution, which means it does not benefit as much from standardization, though it seems most of the parts are standardized. Both of the systems would have operating labour costs in addition to the electrical costs (maintenance, IT support, financial etc.). I would love to see a full lifecycle cost breakdown comparison.
It could very well turn out that the escalator is way overpriced per ride, I just don't have the data to say with certainty. I just think that its not unreasonable when compared against other forms of public transit.
edit: I decided to do some napkin math based on the data at the following source: https://www.smithsonianmag.com/smart-news/the-worlds-longest-outdoor-escalator-just-opened-in-china-riding-the-3000-foot-long-system-to-the-top-takes-more-than-20-minutes-180988468/
- $23 million construction cost
- 9000 daily ridership
- $0.5 per ride (3 yuan)
if we assume zero O&M costs, loans, or anything else, the breakeven for the infrastructure is about 14 years.
for a comparison to an electric bus, including the cost of the driver and the cost of electricity, but ignoring distributed O&M Costs, (e.g. depots, maintenance yards, roads, etc.) the breakeven for the equipment is about 2 years.
170,000 dollar upfront cost, 0.3 dollar per ride (2 yuan), 1000 riders per bus per day, 8900 yuan driver salary, 150kWh per day, 0.5 yuan per kWh.
This assumes the busiest traffic routes, with lower ridership routes having much longer break-even points. A quick search indicates 5-7 years as the average break even point.
I recently read through the Dungeon Crawler Carl series, new book in the series just came out so I plan on reading that one next. It's a comedy/adventure sci-fi and fantasy. It has elements of class oppression and intergalactic revolution. It's not strictly Marxist, but it's not horribly lib either. It's a fun story and it's not just a power fantasy as most stories in the "Dungeon" genre tend to be (e.g. solo leveling).
I also read through the Convergence series, which is a fantasy story about the only wizard in modern society who is trying to stop a fantasy world from colliding with the modern world. It's pretty good, the comedy is quite good, and has hilarious references to marxism throughout. However, there is one section where they completely misrepresent communism which was unfortunate, but it is not really relevant to the overall story, so if you ignore that section it is an overall fun story.
next on my list is probably left hand of darkness or something from the discworld series.