Side note, commissioners love up-front pricing menus but I'm convinced it's strictly better for the artists to work on "contact for pricing" models so that they could dynamically quote complex projects based on all factors. But unfortunately I'm sure that removes a lot of window-shopper clients.

Speaking as a commissioner: never feel guilty about assigning honest value to your a time and labor.

That said... the price that a market will bear depends on its demand and an artist's reach, and at the end of the day we all have to put food on the table.