Wii 2

Under pressure to respond to competitors offering souped-up features for their video game systems, Nintendo announced Monday that it will offer a sneak peak of the Wii's successor in June. While consumers may love the shiny new system, the real question is how much it will cost.

For the better part of two decades, Microsoft (MSFT), Sony (SNE), and Nintendo have been in a relentless battle to develop video games with more realistic graphics, more sophisticated game play, and increased processing power. But in 2006, Kyoto-based Nintendo (NTDOY), which had fallen to third...