I've given up on worrying about the weight of my gear. As it is, my live rig consists of:
Sequential Circuits Split 8, Roland JX8P, Roland TR-505, TWO Korg Poly 61s, microKorg, DX7 MKI, Roland Juno 60, Roland Alpha Juno 2, Yamaha AN1x, Korg Monotron Delay, Ace Tone FR3, Zoom RT123, Korg Electribe MX, Korg Electribe EA 1, a tube pre-amp, a memory man, a rack mount master FX unit, a Kaoss Pad Quad, a mixer to fit all that crap, and the stands/cables/power stuff to go with it.
As you can tell, weight is just at the point of a non factor.
Moog Multimoog Korg MS20 Korg Electribe EMX Korg Electribe EA1 Arturia Microbrute, Waldorf Blofeld Yamaha AN1x Korg microKORG Roland Juno 60 Yamaha DX7 Roland Alpha Juno 2 Korg Poly 61 Roland JX8P Sequential Circuits Split 8 Korg Monotron Delay