Nintendo took a huge gamble when it released the 3DS ahead of Sony’s own 3D technology. That gamble failed, the price being too high combined with a lack of games meant the public just wasn’t ready to buy in. Then Nintendo slashed the price tag, games hit the market, and the 3DS took off. According to industry analysts, the system has sold over 5-million units in the United States. For comparison, this puts the 3DS ahead of the Nintendo DS for this point in their compared lifetimes. Given the DS flooded the world with over 150-million units, that’s saying something. USA Today has the story.