Some reasons to keep 9000:

I-Easy storage (Music database,OTS,Registration memory,flash styles etc)
2-Up grades via FD
3-Strong knobs and buttons.
4-Multi outputs
5-SCSI conection.
6-HD slot.
7-Conection to TV
8-Conection to PC keyboard
9-Powerfull speakers
10-R1,R2,R3 with 3 splits option.
11-Voices with portamento in R3

Chico,still loving 9000Pro