Well, I've been looking for a 61 key unit for the top of the stand for synth pads, horns and strings. Because I'm poor, I decided that a Yamaha MM6 would do ok and was about to buy one.
However, my local store has a Yamaha S80 for sale cheap. because of the 88 keys, it would have to go to the bottom and replace my old Yammie P120 that I use for keys.
I'm thinking that if the S80 keyboard is easy to split during a gig, it is a much better instrument. I don't do a lot of hardcore "piano Playing." Mostly fills, deep background and the occasional clav solo. what I'm lacking is the pads strings and horns.
I can't tell if the S80 is a good option in general or just because I want it.