...hit 'em with THIS:

"Why it is that the concept of auto-accompaniment is terminally unhip, whereas the notion of retriggering backings that other people have produced (such as sampled loops) has become totally cool, is one of life's little imponderables."

(From a review of Yamaha 9000 Pro by Julian Colbeck)
http://emusician.com/elecinstruments/emusic_yamaha_pro/index.html

This goes under the title of"Why didn't I Think Of That?"