The Rubicon 2 makes sense for a mature rig. For a skiff... I wouldn't think so as getting a nice palette of modulation sources out of skiff would be a bit difficult (sources, attenuation, attenuverting, etc.).

I've managed to get some sounds out of it that put it in league with some of the coarser sounding Noise Engineering stuff. ALSO... it has an LFO mode that can go pretty slow. So you can use it as a source for complex modulation of other oscillators/filters etc.

For me, the value is there due to its usefulness. But the cost rises proportionally. :)