In the next decade, Oregon Pinot Noirs will be divided between those that come from densely planted vineyards and those that do not. Once you taste them, you'll agree for yourself. Dense planting is an expensive business. In comparison, a densely planted vineyard has 4,000 vines per acre. Lots and lots of money.
American tractors are too big.
But wine fanciers are willing to pay. For their part, ambitious producers are willing to take the risk. Now, Oregon is seeing Pinot Noirs from densely planted vines. They are noticeably, even dramatically, superior to anything previously produced. It's richer and more concentrated.