My personal beef is that a huge amount of music that I have wanted to buy over the past 2 years is no longer available in stores. I enjoy a lot of the commercial dance and techno music but most CD's are no longer available after around 6-8 weeks. I always enquire at the store and staff make enquiries but the answer is always the same - sorry, that CD is no longer in production. So the only chance I have to listen to the music is to download an MP3.
If I could buy the CD I would, unfortunately I have to resort to plan B...