I my experience, music that appeals instantly can be linked to a short enjoyment span - indeed, the entire pop chart indulstry is based on this simple premise. The need for new sounds to replace the instantly appealing but unsatisfying music of the pop genre leads to a rapdi turnover in both production and consumption.
The 'grower' can lead to far more long-term enjoyment, and sometimes benefits from a period of marination in the back of the mind / cd rack.
One such Cd that springs to mind that i got sent and flicked through and didnt rate was " We live and die in these Towns" by The Enemy. I played it again about a year later after hearing one of their singles on the radio and absolutley loved it and then ended up going and see them live. Always good to give things a second chance!
Great question!!
rammstein's album mutter, never really got truely into it and would skip a couple of songs. but this last year im just addicted, and the songs i used to skip past are now my favs