My DH and I eat together at the dinner table about 6.5 nights a week
We pick up a pizza or Thai food once in a while and maybe watch a movie.
I have almost finished a book (The Rituals of Dinner, by Margart Vissar) which goes into the rituals, customs and history of the dinner table around the world. I've always felt strongly about families sitting down for dinners but this book brought out very valid reasons why it's important.
Children learn so much from sitting with their family, no matter how many people, that they just don't learn anywhere else. Manners, what's appropriate conversation, body language, that they are a valued member of the family, everyone is listened to, holiday fan-fare, what's important to the family and how that changes, what's celebrated, what's expected.. it goes on and on. It's lost when the meal is moved into a room and the tv is turned on and people are tuned out.