There is no accounting for taste. There are billions of individuals, and thus billions of various likes and preferences. This is true even in the world of gaming (on a much smaller scale of course). If we were to pick apart all of the various types of gamer in order to categorize, we'd end up with a decent sized list. But lately there are a few types of gamers who stand out. The Hardcore, the Casual, the Take it or leave it, and the Can't live without it gamers. All of which have markets tailored toward their needs. HD consoles and PSP, the Wii and DS, Mobile phone, and All of the above, respectively.