The value of a good artist or musician.

Artists rarely make back the hours and cash invested in their trade.

A lot depends upon them, and the how much their culture values their particular trade, and art form.

Globally art, literature, music and song is deeply embedded within cultures; as such: an artists trade is often valued highly, similar to that of a plumber, electrician, painter, doctor etc, It's a craft, a skill with positive cultural significance. (A real job)

Here in Blighty, it's not regarded with the same significance.