Sadly, they haven’t been grown by man (a reason for the $$). The spore print color helps in positive ID. I’ve grown shiitakes, oysters, and psylocibens though!
Spore prints can be useful with mushrooms that can be very close in appearance at different life stages. The King Bolete and the Bitter Bolete are two such.
Olive drab spore ? Yummers!
Pinkish red spore? Be ready to throw the whole dish out …