Agreed on the GVG. Before I got mine, I was also a little scared by the price. I tried many, many things, from the light bulb to bong to machine-like home-made vaporizer. But I finally buckled down and bought it... and it was the best decision I've made in a long time. Sessions with a friend went from "Wow, I almost got to the swirling colors this evening!" to "Hmm... maybe less next time."
And it sounds like your buddies are partaking of your spice as well as you. See if they'll pitch in for the GVG; if you're the spice-extractor, then they will benefit from you having the GVG almost as much as you will. That could soften the cost a bit.
If even those plans die, build the Machine (see wiki).
And ethanol is just drinking alcohol, mate, although it need be a very high percentage to be an effective solvent.
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