Homicidal Cherry53 said:
The question is however, are GTA IV and Halo 3 indoctrinating new gamers or merely attracting the attention of a huge amount of existing gamers.
Clearly I would say GTA IV does both. To quote myself:
A good game will satisfy both gamers and non-gamers alike with its presentation, play mechanics, and style.
The sheer number of copies sold suggests this game is penetrating every market, and the hype and controversy surrounding this game makes it reach a much larger audience. Aside from that, I would cite anecdotal evidence. The friends I have who are reluctant to "play video games" are always up for Wii Sports, Rock Band, and GTA. I do not think it would have been possible for GTA to sell so many copies so quickly if it only appealed to the established gaming community. It is part of the public consciousness, and is a topic of conversation amongst people who know almost nothing about video games (obviously). It can't help but attract an audience that would otherwise abstain from video games.
I also think the PS2 reached a far greater audience by doubling as a DVD Player and sporting the most diverse gaming library of any console ever. Aside from that, owning a PS2 was genuinely thought of as "cool" and many people who were intrigued with video games, but were reluctant to purchase a game console, saw the PS2 as a viable option. It appealed not just to younger audiences who were looking to purchase their first console but were intimidated by more in depth gaming experiences, but to the casual audience that was interested in not just playing video games, but also with watching movies, listening to music, and so forth.
If anything I would say the PS2 is even more accessible than Nintendo's consoles in that Nintendo's games, which can be enjoyed by everyone, are inherently aimed at younger, or inexperienced, gamers, and the software available for the console by and large reflects that. The PS2, and to a slightly lesser extent the 360 with services like Live Arcade, has managed to establish itself as both a console for casual gamers looking for quick, shallow, but fun gaming experiences, while also providing much richer, more engaging games that are truly blind to the gamer's age and previous experience with games. Being able to indoctrinate gamers from any age and background, and keep them once they become familiar with the gaming language, is a much more admirable goal than only accomplishing the former, and also a much more important role to play in the industry.
A game like GTA IV will not only indoctrinate new gamers, but it will retain current gamers as well. The greatest obstacle Nintendo may yet face is retaining, or entertaining, the vast audience which they have supposedly indoctrinated. While the Wii shows no signs of losing momentum, the console itself has not yet matured to sufficiently suit the needs of anyone who is familiar with gaming. And if Nintendo fails to do so, these newly indoctrinated gamers might be just as quick to put the controller down as they were to pick it up. In the long run simplistic, uninspired, juvenile gameplay may taint a person's opinion of video games and video gaming as pedantic and childish, like playing with a toy. And that would hurt the industry far more than it would help it.