Let's face it. Achievements only appeal to hardcore gamers, and the Xbox 360 is the console of choice for hardcore games. As an adult with many things on my plate aside from gaming, I just do not have the time or patience for beating a game and completing every small side quest. Back when I was a kid, I would certainly have been totally into achievements. As a console that appeals to the casual gamer, the Wii doesn't really need to have achievements to sell their games. Sony? Well, I certainly imagine they will try to come up with a similar system but at this point I doubt it will help them.