Joss Whedon, whose newest movie Avengers: Age of Ultron hit theaters recently, has one particular economic (and ethical) preoccupation that reappears in his works: What should be for sale?

Whedon's particular preoccupation becomes apparent in season 6 of Buffy the Vampire Slayer. After Buffy's mother dies in season 5, Buffy is left alone with financial responsibility for herself and her younger sister. She has a checkered high school education, a spotty year at UC Sunnydale, and no practical job experience. She also has leaking pipes, a roof that needs to be replaced, and a house that is losing value because of its proximity to the Hellmouth. Money is clearly a problem.

It is the ever-practical Anya (the former demon transformed into a human and an enthusiastic proponent of capitalism) who has the solution.