For me, Music has ALWAYS been about "The Music". The lyrics are always secondary to me. If it's not a beat or rhythm that I like, I don't care if the lyrics are good. There are exceptions I'm sure (artists like Elton John come to mind), but not many.
Plus, you can't play air guitar or air drums to an a cappella song. Eventually after listening to a song with good "Music" for awhile, I'll pick up no the lyrics though.
I think that's why I don't care for alot of "Pop" songs, they tend to be more about the lyrics or the look of the artist than the music.
So what a bout you, when you listen to the song, do you listen to the lyrics or the music mostly?