Goff's

From Willipedia

Overpriced items. Monopoly! Oppressive bourgeois capitalist imperialist sweatshop-labor-exploiting pig-dogs!

The above sentiment isn't quite that overblown, since according to comments in an EphBlog post [1], there was a Williams Co-op that sold college-branded merchandise back in the day. Thriving free market and all. Goff's isn't in, and perhaps doesn't deserve, a natural monopoly.