124... had Korg already come out with OS2 for the PA2Xpro before you bought the PA1?

I am not sure, even with the monetary considerations, that I would have made that choice. I believe that the DNC feature IS the 'new generation' aspect for Korg's, as SA made the T2 the breakthrough arranger for Yamaha.

I am sure, especially with Korg's upgrade policy, that the current OS2 PA2Xpro is by no means the end of the line for this model. Look for new DNC voices to load up, new styles that use them, and doubtless many new features long before the next model comes out.

Unfortunately, all of this will pass your PA1X by. But it is still a great keyboard... I just have a feeling, as Korg release more DNC sounds, that you will start to get a bit envious of its' newer brother
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An arranger is just a tool. What matters is what you build with it..!