You might ask: Why hunt for PKGs on PS3 when I can just play Steam Customs on PC?
Almost certainly not. But as long as jailbroken PS3s survive, and as long as collectors keep sharing their backups, the lost tracks of Rocksmith 2014 will keep playing—one PKG at a time.
Which specific DLCs are considered the "white whales" of the Rocksmith PS3 community? These are the PKGs that drive the most search traffic: