Really interesting! Can you provide ballpark as to prices. I know 3-4 families from NYC area that moved to Portugal recently. If you wish to buy a vineyard here, in a choice location, you'll be priced out at like $50k per acre. If you can even find a plot of tillable land available that covers 50+ acres. Alternately, Amazon is subletting 10M of warehouse space in NJ, so you could grow grapes indoors?
CERN / Swiss Alps / French Burgundy region also looks like it has potential for those seeking the "Château de Guédelon" medieval lifestyle ;)