It's funny—back in the day when IE 6's box-model did it more like this (it was really margin-box, which still doesn't exist and probably never will), I used to say that IE's model, while incorrect was superior. And people would disagree with me vehemently. Now, people swear by border-box, which is much more like the old incorrect IE box-model (for good reasons). But it's funny how anti-IE sentiment overruled common sense.