Basically, if you want a lot of flexibility as far as out of the box you buy the Korg,if you don't want to edit sounds or styles to your liking go with the Ketron, most people that buy Korg are really stuck from the previous styles that they already have, were as if you are starting new you can steer more towards Ketron, they are both good keyboards, good luck!
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Currently main setup on stage are:KORG PA4X,PA1000