You also tend to find that workstations have far better master keyboard capabilities than arrangers, something that is of great concern to gigging pros (remember, most of them are using them with full bands, so there is less need to have an automatic rhythm section).

Most of them will have at least a couple of keyboards, and a rack of outboard synths and samplers, and keeping that all under control is important. Don't get me wrong, the top-of-the-line arrangers are OK in this department, but just OK.... none of them approach the flexibility of a Kurzweil or MotifXS

There IS an important difference between arranger and workstation, but the trouble is far too many people choose the workstation when the REALLY need an arranger. It is time that the arranger divisions of each corporation do a better job of addressing the needs of players that need arranger AND workstation capabilities in one keyboard, and I believe that adding workstation capabilities to an arranger (master keyboard functions, in-depth editing) would be FAR easier than adding arranger capabilities to a workstation.....