In general(again in GENERAL)


arranger advantages
-------------------

real time chord triggering

seperate buttons(patterns/varitions/fill)

larger display

direct-disk play(in most)with no loading time( and lyrics)

style sharing/writing

mic(sub standard in most) input with vocal harmony and efx

easier to create demos /lay down the tracts (since drum machine is built in)


workstaion advantages
---------------------

relatively (in most) better sound/efx board and editing,new G70 accecpts a srx board but the main sound board model is uncertain-most propably less than top of the line module)

ie
-MU vs EX/motif series in yamaha(though 3k,tyros has some longer samples,are still alot less compared to a workstation)
-sc88 alike sound canvas vs jv 1080 to xv 5080 boards in roland(G and VA series have some JV sounds but still not much compared to a wkstation)

(exception-Korg models(same as their current workstations) where you can load progs(patches) from workstation(eg- I3 arranger-x3 wkstation board)to (PA series-triton board)

better seq /sound editing func

some are expendable(ROM cards slots or exp boards )

cheaper in the used market(compared to an arranger)

sampling(most are more advanced than your arranger's)

combination/performance patches(ie-layering)

more expressive realtime SOUND control(sliders/ribbon/breath controllers)

and yes-arpeggiator(can be dual-can create wicked dance grooves)


workstations are getting better in user friendliness dept-and arrangers are also gettin better in sound dept)
eg-16 pads,RPS,sampling with mic input and efx in S and X series fantoms
good VH board,mp3 playback,sampling in PA1x etc

but
bottomline-if you go for sound and studio/live band work go for workstation

and ofcourse if you are into solo giging,want to (or must)create many songs /demos in limited time arranger is the answer.it wouldn't hurt to have both though. http://www.synthzone.com/ubbs/Forum37/HTML/009235.html