I would like to give a real world example of this too.

If you want to do something artistic or start a business based around Art, Montreal is perfect for it, for the very same reason above.

Initially the govt invested in the arts to preserve French culture, which resulted in a lot of art infrastructure being made, cheap ateliers, fabric suppliers, paint suppliers, &c. Which attracted a lot of artists, which then increases the demand for the art infrastructure, which makes the city easy to make art in.

It makes it stupid easy to make stuff and find the skilled artisans you need to make it. Much easier than any other Canadian city I've lived in.