Boo,
Play em' both, use quality headphones, then you decide. For me, the PSR-3000 wins hands down. But for some the Korg may be the board of choice. Ultimately, you'll have to make the decission.
As for the sequencer, it's a piece of cake, but I ain't flyin' to Colorado to provide private lessons!

Good luck on whatever you decide upon,
Gary
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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!
K+E=W (Knowledge Plus Experience = Wisdom.)