I recently bought a Taschen book on Polaroids. It was a great reminder about the greatness that an imperfect polaroid can be.
Since I bought the Mamiya RZ67 in November I have enjoyed shooting both film and polaroid pack film. The quality of a 6×7 negative is impressive and keeps me motivated to shoot with the Mamiya. The instant gratification of shooting polaroid film is mostly novel but everyone seems to love the tangible and magical process of instant film. It’s also quite a bit cheaper than 120 film.