First off, we can't make an all tenderloin cow. And second, that's the problem! If filet cost 1/4 of what it did now consumption might go up 100x. And obviously, it can't. But people would try. Until the price went up enough that the market for tenderloin started to clear again. But people have this extra money, right? So they can afford to spend more on hamburger. Congrats, we've raised prices!