Re-listening to Songs

When I talk to people about music, they always are trying to find the newest great song.  They always want to search out new artists, which is of course fine, but it seems that they're getting bored of awesome songs after hearing them just three or four times.  I really don't understand this.  I can't really describe my taste in music, but it's hard for me to find songs that I truly enjoy.  Once I find such a song, I can loop it for hours and still experience the awesomeness each time.  Maybe it's wise for small children to slowly get into popular music; find an amazing band or a few songs and learn to appreciate the details.  Disclaimer: I know next to nothing about most popular music.