Hi,
I am an acoustic piano player. (NOT my profession

) I have been looking for a digital piano for awhile. I also have become interested in keyboards with additional features along the way.
Here's my dilemma. Yesterday I stopped in a music store, looking at digital pianos, keyboards etc. I walked out with a Roland FAntom X7 (I know, not an arranger). Mostly, I left with it because it was the only one left on special, I loved what I heard someone else doing with it, and I loved the 'piano' sound quality.
I played with it for hours last night, posted on some forums today. I did not know anything of arranger keyboards till today. I like to play live music, add accompaniment, add special effects etc. I understand tracks/sequencing and all that. I like the idea of recording sounds/tracks/etc and making multidimensional music. However, I also really like playing 'realtime' as well, just basically combining rhythms, beats, sounds, and melody, etc to 'create' something.
Based on this little bit of info, what is the opinion of arranger vs keyboard/workstation (ie. G7-/va-76 etc versus X7 that I picked up). What are the advantages of one vs the other. I've looked at specs etc, but they don't answer my questions.
Thanks for any and all help/comments!!