I have to totally disagree, maybe if you are talking grocery store purchased tomatoes, this might hold true somewhat, but in general I don't think you can apply this type of thinking to tomatoes. My grandfather always grew giant beefsteak tomatoes and they were always very flavorful. I have also grown many varieties of tomatoes, some of them which grown quite large and they all were very flavorful. In fact, sometimes the larger ones were much more flavorful than the smaller ones. I just don't see any way you can equate the size of the tomato with its flavor.