KMA is a great intro to Korg....and in some instances KMA makes a kool backup piece IMO......people are realizing how KORG really addresses the needs of the live KB musician....I have no regrets on switching to a KORG PA500 from Yamaha..... I'm hooked on the "LIVE" sound Korg offers me and can NEVER go back now.....unless things changes in the future....we'll see.