Just got back from Costco with a 24 pack of BridgePort's Hop Czar (7.5%, 87 IBUs) for $23 (not including tax).
This works out to 90.78 IBUs per $. Or, conversely, 1.1 cents per IBU. (Assuming 12 ounce servings).
Then I got to wondering, I like big, hoppy brews, but I am also cheap...