APIs are indeed hard work to implement. The supplier offering an API needs to think deeply about their business and at which points in their existing systems they are willing to inject outside requests for action.
In risk averse Japan, the thrill scale is a bit more docile than some other locations, but the most iconic and visually spectacular events are superb. The olden-day Japanese were particularly good at vivid colors, lighting, and shapes.
Inbound visitors have transitioned from high-spending luxury travelers, and "once-in-a-lifetime" tourists, to a larger group of lower-value repeat visitors with naturally less money to spend on each trip.