(1) Roland GW8. Interesting keyboard, decent sound. As a pure arranger it's inferior to the BK5 and E50. But-it's the lightest self-contained keyboard with Roland Chord Intelligence and style revoicing. Compact and portable for impromptu gigs.
(2) MicroArranger. Didn't like the tiny keys and tinny built-in speakers. But-it was small and light; better facility for recording backing sequences than newer Korgs due to a pernicious software bug in the later models. Newer isn't always better!
(3) PSR-S950. Upgraded to T5 because I wanted the larger screen, mark and jump for song playback, and a better keybed. In retrospect, the S950 paired with my Roland on a two-tier A-frame stand would have been a more capable combo than the T5 and BK-7m.