i have had my Korg Pa1X coming up to 9 years . i have learned thoroughly, (probably) only 50% of the instrument features in terms of musical applications and not just an academic understanding.
I have barely touched the sampling side other than as a basic feature to sample my choir or one shot vocals. never used the vocal harmoniser. i am still developing my understanding of style editing features and CV's . There is just so much more to learn and i can honestly say that whatever else i may buy in the future , this keyboard is a keeper for life.
i find the more i dig into my keyboard he less tempted i am to buy another one.....