The land prices in this area are among the highest in the nation, so I hope this is a sideline and not how you hope to make a living. If you have a few million $$ to plunk down, your best bet would be Napa Valley, where much of the nation’s **** grapes are raised. If you’re creative and energetic, you might be able to work out a deal with local building owners to develop one or more rooftop farms, citing the energy savings they could realize by having a “green roof.”