I think I fell for PSD because it was the first DK album I could find. Seattle was a real backwater then, and the only real record store I had access to was Easy Street Records, which was focused on rock and metal. It was hard to find punk records, so when I saw PSD, I bought it. (And possibly Candy Apple Grey by Husker Du, at the same time...?)
I still marvel at the guitar and bass work in the Dead Kennedys. They had serious skillz.