Often, when I mention our CSA to people unfamiliar with Community Supported Agriculture and I explain how a CSA works, they express astonishment at the high cost of these weekly vegetables. With each year of CSA participation, though, I feel less and less interested in justifying my choice. When someone asks, “Isn’t that really expensive?” I shrug and say, "it depends on how you look at it." Now, for people who want to argue the point further, I have a book to recommend.