Hi Guitarman,
I sprung for the PA-80 and have been absolutely delighted with it "out of the box". I'm a Flamenco guitarist in roughly the same position as you; my interest was in using Middle Eastern and Greek rhythms/instruments. and adopting them to Flamenco rhythms.
The sounds on the PA80 are quite extraordinary, and the styles are great (of course, I have the Turk/Arab card - apparently the Egyptians don't like it; I'm in the process of sorting THAT out....:-)
It could have a more intuitive interface, to be sure, but that is because it is so flexible. As I've posted here and elsewhere, if Milan (KAT2000), and Korg can get a working version of the "Collected" files running, it will become very easy to program styles in SONAR......
But there is so much to it, and I really respect the musicality of the styles I don't play...
"Flamenco Chuck"
www.flamencochuck.com