g.d.e.l.g.i. said: "Plus, expensive or not expensive, it's potentially a tax deduction if it flops. Gotta love any legal way to screw the IRS."
Or to restate what you said - gotta love any legal way to give more to help the rich by taking from the poor and middle class. The tax system is set up to help the rich.
Thinking about Piazza made me consider that Gardens of Anuncia could be a similar enjoyable mature musical if its narrative was buttressed with a better book.