aside from looping's inherent "practice aide" qualities, i am exclusively a live looper. i have no pre-recorded tracks and everything i do (within the band context) is done on the fly and loops are build and torn down on stage. live looping effectively lets me clone myself so that we go from trio to octet in a matter of minutes. as far as i'm concerned, this is the true beauty of looping devices.
by the way, what's the other type of looping? dead looping?