Every few years, someone covers a song in such a way as it becomes the new definitive version. Killing Me Softly, Hurt, I Will Always Love You, All Along the Watchtower...however, it's not often that a band does it to one of their own songs. The incredible version of Pushit on this album is worth the price of the entire thing.
Their cover of Led Zeppelin's "No Quarter" is just a bonus.