Hi Chony: I suspect, to get a volume (group)discount deal, that 'one' person (you?) would have to actually purchase all the keyboards first, and then the others in the group would have to pay (reimburse) you. Not sure if this would cause warranty transfer issues though, as I suspect you would be considered the original purchaser. Perhaps George Kaye or DanO could chime in here and share their expertise in this area. - Scott