Ah, but practicality doesn't ALWAYS win, Nestor. Especially in the good-old US(and)A!
For a few decades now, Stainless has represented a "higher class" look. Despite practical criteria, it evokes an emotional response that isn't matched by run-of-the-mill white or black (or "bisque"). It'll be hard to shake that effect, since human emotions many times overrule an object's practicality. We are a nation of beauty queens and wannabes, and while it may not be the best choice economically, it will remain a popular choice. As far as I know, the "fad" has already lasted longer than fins on cars!