Don't disagree in the least, Dave. I did a research paper on the feasibility on this side of the mountains (some time ago). Couldn't make it pencil out, but on the East side, different story.....much closer to feasible.

We are a ways out yet, but we may get there. My wife and I are very low impact users, so it may not become a reality in my lifetime, but who knows?
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If it's a crop, plant it.