Slot music player?

Finally Sandisk comes out with a new AAA based player with a card slot, but it is missing a display, and has lower sound quality than the Clip. If it had a display and sound quality equal to the Clip then I would find it interesting. I don’t understand the Slot Music concept. Why would someone buy this instead of a CD? Who wants to have many 1 gig cards and swap them around? They are small and can get lost too easily.