Someone already gave a really great answer to this question. Communication, time with loved ones, the emotions you experience together. For me, dominoes was pure joy in childhood when an ordinary evening suddenly turned into a celebration. Usually busy and tired adults would sit down at the table and start playing, sometimes getting incredibly emotional about it. These days I occasionally play domino online. It's done really well, and the site is convenient. But it's still just a game. It lacks what I remember from childhood.