My opinion is its a no brainer. The BK9's sounds are way updated over the G1000, especially Drums, Bass, and Pianos. Better Styles too. As for the keyboard I think the G1000 has a slight edge. As far as audiences go for most gigs you could still do fine with a G1000 but the BK9 will give you a bigger grin factor. And the updated Styles will be more useful.
_________________________
Bill in SC --- Roland BK9 (2) Roland BK7M, Roland PK5 Pedals, Roland FP90, Roland CM30 (2), JBL Eon Ones (2) JBL 610 Monitor, Behringer Sub, EV mics, Apple iPad (2) Behringer DJ mixer