

The internet (ie bandwidth) is cheap, but running servers, providing documentation and tech support all costs a decent amount of money.
However, treating an API as a profit center is a joke. These are literally companies developing software that makes the experience of owning a Tesla better. Making things unaffordable for those companies is putting short term profits over long term success of your product
Las Vegas has a monorail but it only connects a handful of casinos on the strip. There had been proposals to connect it to Downtown Vegas and the airport, but I don’t think that there is any money set aside to make it happen.