I ve had my 3k a year (9000Pro before) I have had in the past Korg i3 & i30 and Roland EM2000.
I am now into my 2nd week with the PA50. Purposely played only the Korg so as to get into it before patching up to the 3K.
I think the 3K is a great board, but just today I played the 3K again after a week with the PA50 and the 3K appeared thin lacking the body that the PA50 has. No sweet voices though.
These two boards are going to make a great combination.