every hobby can be as expensive as you want it to be. the cost ceiling is however much the richest person doing that hobby is willing to spend.

if 2 billionaires want to get into drawing as they are willing to spend a million for a box of fancy cryons, those products will appear in the market. even though they’ll be marginally better than those 500$ onces

but the question was about the cost of entry. and with drawing, the cost is negligible