It all depends on if we want/need that "live" sound...I chose Yamaha for it's lovely refined and slightly compressed sound.
As I said to someone earlier today, we all drive different cars....they meet our needs, and our style and sometimes, they support our egos as well...hence the luxury cars, and people buying SUV's that will never even go off the pavement.
If "live" sound works for you, the Audya seems to be the ticket to ride...it is more "live" sounding than Roland and Korg as well...but, sometimes that type of sound is not as important to some people...I'm one of them, as I'm sure there are many more.
Ian
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Yamaha Tyros4, Yamaha MS-60S Powered Monitors(2), Yamaha CS-01, Yamaha TQ-5, Yamaha PSR-S775.