Why is Zoysia so expensive?

Could you elaborate on why Zoysia, a type of grass, commands such a high price in the market? Is it due to its unique qualities, scarcity, or perhaps a combination of both? Is there a particular demand for Zoysia in specific regions or applications that drives up its cost? Additionally, are there any special care requirements or maintenance practices that contribute to its expensive price tag? It would be insightful to understand the factors behind the high cost of Zoysia and how it differs from other grass varieties.