The question of usefulness is problematic. Fish's argument--or, well, the argument he was making two or three years ago in the Times--was that the humanities are simply about duplicating professorial taste. It's glib and relativistic, so it appealed to me, anyway. John Guillory (who is/was also a Miltonist) makes a related, though more refined and nuanced set of claims in the Cultural Capital. The humanities, he says, are about furnishing students with, well, cultural capital: "I am better [than you] because I have read Alice Walker and Edmund Spenser &c." There's (come on, you've got to admit it) at least a whiff of elitism in humanistic study. The systematic defunding of the humanities (particularly at state-sponsored institutions) makes some sense.