I do have one friend who does nothing but sell pot for a living, and he's been doing that for around 20 years. No idea what he'd do, but even if it were legal, I don't think the market for high-quality organically grown pot would disappear. It still takes nutrients, soil, bulbs, electricity, experience and time to make it appear. Not everyone would want to go through all that.

Like, we shop sometimes at this 'healthy living' type grocery store, and they have no probs selling tons of organically grown stuff that is perfectly legal to grow. So, I don't think dealers would be automatically out of business; they'd just have to adapt and provide a competitive product at a competitive price. I guess they already have to do that, although once you find a dealer you know you can trust, then loyalty backed by paranoia can override quality/price considerations, to some degree anyway.