I could use google, but I'd rather ask the members of DR.
When I started my Virginia winery excursions around 2005, every winery had a Norton wine. You couldn't avoid it, because it was practically proclaimed as the state wine of Virginia.
But in the past few years Norton has almost disappeared and replaced by Cabernet Franc. What's more, I was in St. Louis in April and the grocery store shelves had plenty of Norton, which appears to have turned into the state wine of Missouri. What happened? Why did Virginia wineries get rid of Norton? Not that I miss it, because 9 times out of 10 I didn't like it when I tasted it. I'm just curious!