i don't really like bringing along a brick with me, of which i find many high end DAP makers miss in their design decisions.
it costs too much and i wouldn't appreciate the sound anyway since i'm busy walking around.
and since these things are so big, i can't put them in my jeans. if i need to put them in my bag, then i can't change tracks, volume, etc.
so i just rely on my iTouch or M8