A formal dining room is great where there is going to be regular entertainment. If you have a breakfast nook and formal dining room or you have a big bonus room where everyone eats around the TV, the dining room may not get used very much. A formal dining room is still an important feature for resale however, especially in a larger or more expensive home. If you appreciate an answer, please give thumbs up. For the most helpful answer, please say thanks with a best answer click.