I'm a huge fan of wine tasting and the Virginia vineyard scene. What I am NOT such a huge fan of is the hour drive to get to most of our local vineyards (if you live inside the Beltway) and the hour drive home. The newly opened District Winery makes a phenomenal tasting and dinner just a Lyft away.
MGM National Harbor, with its silver tower glittering over the Potomac and viewable from Alexandria, is not a cheap place to spend the evening. But if you're looking for a bit of the service, sophistication, and unapologetic adult decadence that Vegas offers without the plane flight, MGM National Harbor is an worthy substitute.