Here's a counter example: The floating islands of Lake Titicaca. The islands take a lot of work to maintain, they're actively dangerous to live on, and not es

Here's a counter example: The floating islands of Lake Titicaca. The islands take a lot of work to maintain, they're actively dangerous to live on, and not especially comfortable. The islands continue to exist because tourists visit and pay enough for souvenirs to keep the islanders from moving onto dry land. Just one example.