I guess the 'guilty pleasure' stuff is about liking stuff which you know not to have any weight or depth, but basically this is true of all of us. Most of us aren't programmed to be operating at full mental capacity 16 hours per day, and there are moments when a bit of crap is just what we need.
Related are people who dismiss entire genres/mediums as being crap (television, any music written after arbitrary date X, etc.)
