growing grapes is easy, but producing an amazing wine is hard, or more in the spirit of HN building a web app is pretty easy but building something people want is hard, I assume the same applies with weed.

It would be pretty lame if the Budweisers and Phillip Morris of the world come in and commoditize Marijuana, and it would put a major dent in some local California economies. But like a fine microbrew or boutique web shop there will always be a market for quality.