I am tossing around the idea of buying one of those EHX synth/organ in a box pedals. You know the type: they sound awesome in the youtube videos, track flawlessly, etc. Does anyone have one? And do you use it? When I consider how inaccurate my Boss octave pedal is at times, I am skeptical about how forgiving these things are. They are a bit pricey to use as a toy, and they don't have that many sounds in them. Are they 'worth it?' And how easily are they applied to live situations-- as in the mix? The youtube vids are usually just solo stuff. I have read that they are not designed to replace a keyboard- but if not that, what use are they?