The Retail Price of the Korg PA1Xpro is $4500.00 vs the SD1plus retail price list of $3900.00. Why the difference? There are many more options available on some models and there are many features already built into some of these newer keyboards which are not possible on the current SD1plus.

Korg and Yamaha have USB, Korg has a digital out, Both have built in video outs, sliders on the Korg to adjust volumes and other functions, both have much more expensive to use larger color touch screen monitors, CD/RW burner option on the Korg. These differnces justifies the slightly higher price point in my opinion on the Korg and the Yamaha is less then the SD1plus at a Retail price of $3495.00 and if you add a hard drive it's about another $100.00. Then it comes down to the choice of which keyboard one likes the feel of better, the look, the sounds and styles and other features, and which sequencer functions more to ones likings. All these three brands are great keyboards.
George Kaye
Kaye's Music Scene
Reseda, California