but that is not the case Kairon, there have always been and always will be hard core gamers and casual gamers, this is not knew to Wii, it is not knew to gaming in general, it is just more apparent with Wii because that is now the *focus* instead of the alternative.
Super Mario Bros. and Duck Hunt combined together to catapult the NES into the massive overnight success that revived the dieing gaming industry, by doing he same thing Wii is, ditching the "hard core" crowd and reaching new audiences.
My mom, grandma, and aunts all picked up, and enjoyed Super Mario Bros. and I know many grandparents to this day that still do. NES continued to have these same dominating types of games, it was Tetris, one of the most casual games ever made, that made the GameBoy line the phenomenon it is today.
The reason these systems have such mass appeal is because they break the barrier down and make it simple enough that people who can't program a VCR can still enjoy these new games, and trust me both of my parents fall into that category. The same gamers who started out playing Pac-Man, Asteroids, and Pong, considered Traditional by todays standards but very much casual in the sense that they were games anyone could pick up and play and still have the same audiences to day.
Things started to change when the arcade games needed to become more complicated to keep the aging gamers from moving onto knew things and reach out to a generation who had grown up on the simple games and wanted something to challenge them, this naturally forced Nintendo and Sega to make more complicated games for the home market to reach those same gamers. Because the young pup where started playing NES at age 5 was now 10 years old and had become an expert gamer Nitnendo/Sega needed to make games that would continue to challenge him and keep his interest.
The early "casual" games were usually games that were simple, and could appeal to people with short attention spans or could be played in a single sitting but also offered just enough extras to keep the devoted gamer coming back for more. Those early Mario games were hard for us when we were kids, but I see adults and teenagers brisk through them in a matter of minutes like they do a single round of Wii Bowling. As we grew up we wanted deeper experiences and games continued to get more complicated, but the casual games persisted.