Currently: (and yes I am a Roland whore)
Fantom X8 w/audio exp. and classic keys SRX
XV-88: God I LOVE this keyboard. I know, no sequencer, only ONE MFX plus chorus and reverb, but, damn, there is just "something" about this axe that I LOVE.
JP-8000: Nurgley, wheez, fat, boom
SH-32: Yes, I know there are MUCH better VAs out there including the non-Roland I will be listing below, but this little module ROARS!!
Juno-106: Yes, it's simple, yes it's really "old", but, again, a love affair.
Kurzweil PC3: Inspiration! And its VA-1, combined with KB3 and Dynamic VAST, 32 layers per patch, 16 independent arps, programmable riffs, and an unlimited track sequencer make this a BAD mutha of a synth. HELL to program though - steepest learning curve I have ever encountered since my old K2000.
Wavestation EX: What can I say? I still love wave sequencing and vector weirdness, and I don't have to emulate it :)
TG-33: Just a fun little guy that when MIDIed to the Wavestation makes some very cool pads.
WANT to own and would sell my soul: V-Synth!!!!!!!!
USED to own and regretting selling them:
K2000: Sure, obsolete with the addition of the PC3, but, still a lot of power.
Oberheim Matrix 6: Why the HELL did I sell it???!!!! ACK
Korg DW-8000: Kevin Moore used to use this and the following on my list. Had some cool lead sounds and easy to program.
DSS-1: Ridiculously heavy, and really impractical, it was my first sampler. BUT, it had this cool ability to draw your own (simplistic) waveforms and use them to build patches. Steve Winwood used the DSS-1 for years.
M1R: I thi9nk that M1s are so old they might be new again. Yep, we heard this one everywhere in those days just like we heard the Triton everywhere some 10 years on. Still a fun module though :)
Sequential Circuits Six Trak: One of the FIRST multitimbral synths and a true analogue. I still remember hitting shift six to tune the oscillators on hot out door gigs. The stack mode allowed you to take six different patches and knock them together for a BIG monophonic lead patch of the apocalypse.
Poly 800: Was my first synth and I should have kept it just for that reason alone. And of COURSE, there are very cool mods for it now. Who knew?
Previously owned but NOT regretting the sale:
Kawai K1-II: It LOOKED cool, but only sounded meh. In fact, I think I liked ONE patch out of it. :)
Roland S-10: ACK, PTOOIE!!!!!!! I mean, Quik Disks??!!!!
Casio CZ-1000: Ummmm, I think I was tripping when I bought it.