I have both PSR3000 & KorgPA50. Overall the PA50 is excellent value with a better feel keyboard than the 3K or 15K. To my surprise I find I like playing the PA50 as much as the 3000. The 3K is possibly the better board, but so it should be at twice the price of the Pa50 UK Pounds. The PA Amp & speakers give good output greater than the 3K. The PA sounds have a warmer solid sound to them against a thinner sound samples of the 3K. They are both good keyboards and I am lucky to have both. It's all personal choice. My local friend has a PSR1500 and prefers my PA50.