Are goats worth money?

I'm curious to know, are goats really considered to have monetary value? It's a somewhat unconventional asset, so I'm wondering if there's a market for them as investments or if they're primarily viewed as livestock for dairy, meat, or other practical purposes. Are there specific breeds of goats that are more valuable than others? And how does one go about determining the worth of a goat, if indeed they do have a tangible financial value?