I sold mine complete for $500 nz after I hadn't switched it on for a year.
It was a fantastic machine sonically, but it did have its quirks;
very slow load times, very particular about its ram ( I think I got new ram from 3 different sources on 3 different occasions before it worked properly!), and those rotary encoders drove me up the wall.
It felt to me like Yamaha was on the cusp of achieving the ultimate Sampler, and one more model/revision would have done it. Weren't these almost MLan capable? but they ditched it and moved on to the motif series workstations, they even used the same expansion boards as 4000-5000 series
I bought Kontact to replace it, but to be honest, the interface here is really annoying and all my attempts to simply map samples have resulted in constant crashes. I've realised my mistake too late. Possibly great if you just want to load sample libraries and tweak a little...
akai usb transfer is fantastic, would consider a Z series or mpc with jjos, but akai effects are pants in my opinion.
Why Akai won't increase Sample and bit rates and up spec their samplers is beyond me. How is a mpc2500 a move forward from a mpc4000?
they have gone backwards I my opinion.
Was holding out to see what dave and roger came up with linn drum wise but not holding my breath.
I had an S950 back in the day, very limited, and floppy disk drive but analogue filters and warm sound.
If only I knew then what I know now. Go the hardware!
I must be getting old if A series samplers are vintage. Its all computers these days as my grandfather used to say
"In space no-one can hear you scream".