also, what Erik said...I think alot of the microbrews have adopted the wacky labels and names as attention getters...they obviously can't compete financially with the Anheiser-Busch types but they can grab your eyes when you're walking past the cooler.
I remember my ex-woman brought me back a bunch of beer on a family trip several years ago, including some Polygamy Porter. Then when I tried to scam her into a 3-way with her hot friend, she got all butthurt! WTF.