San Luis Obispo, CA
This is the venerable little-shop-that-could of Southern California, and revered justly by fans across the Golden State. Located in an idyllic beachside college town, Boo Boo's nuanced collection of CDs and vinyl dwarfs those of shops three times its size and the scholarly but friendly staff keeps even the most eccentric bands accessible to neophytes. The extensive jazz and classical wing closed recently, turning the U shape of the store into more of an overstuffed J – a problem Boo Boo's has happily compounded with its newfound expansion into books and memorabilia. Singer/songwriter M. Ward once presided over the cash register, about two decades after the store opened in 1974 – but neither he nor anyone else has been able to pry the meaning of the store's name from founders Ed Taylor and Glenn Forbes.