Change your username and you might get more responses.......don't ask me why........
Anyway, the 3080 has 128-note polyphony, which, if you do much piano work, is a god-send. It also takes Rolands new series of wave expansion cards (2 slots) as well as the the XP/JV cards (4 slots). Trust your instincts and shell out the extra dough. I have the XV-88 on order myself.