The thing is the Korg arranger is a completely diffrent animal to he tyros or audya or any other arranger. If you are only looking at the keyboard from the stance that it comes pre loaded with 400 styles and the styles rae all you are into then buy a tyros. Leve the Korg Pa products alone . The korg keyboard provides you with al the tools of your standard arranger and then gives you all the tools to accomodate any other type of keyboard !! If you are not buying the whole concept of an all i one synth, arranger, workstation production tool then you have missed the unique attributes of the Korg Pa range over its competitors.
Nothing wrong with yammies or the Audya as they are fine arrangers . If you love the yamaha styles (and they are excellent ) and styles are all you are into , then you cant go wrong with a yamaha. But if you actually want to play pre programmed styles and want to create your own styles and music and sounds thn look again at the Korg