Harry writes: "Some bad decisions in game console design get made over and over. (How many early systems had nightmarish controllers?) Others are uniquely inexpicable. (Like the Game Boy Advance's lack of a headphone jack.) And others stem from companies being too clever for their own good. (Like the way the RCA Studio II and Atari 5200 drew their power through their RF switches.) Benj Edwards has rounded up 15 classic examples, and has attempted to figure out what was going on in the designers' heads--and what we can learn from their mistakes."