Since Civilization was brought up in this thread, I should comment briefly on the game. I help run a mid-sized website for Civilization 4 (http://realmsbeyond.net/civ/) and have been actively involved in the Civ community for quite some time. I've done beta-testing work for both Civ3 and Civ4, and I was contracted to write lengthy portions of the Civ4 manual (where my name is listed in the credits). In short, I'm a very biased commentator when it comes to the Civ universe. 
That said, I would like to see more games along the lines of Civilization, and less of the aforementioned shooters. I'm not saying that we need more turn-based strategy games (although we do....), but that ideally more games would be open-ended, and allow the user to shape the story. For example, in the Civ games you can be a bloodthirsty dictator and kill all your rivals if you want. That's actually how much of the young male demographic plays the game, in fact. But there's so much more you can do too: try to win by culture, convert your rivals into friends via diplomacy and religion, fight an economic cold war through the space race, sabotage the other guy with espionage, and so on. The Civilization community consistently has a different age demographic than most online groups; fewer young males and many more family men and women in their 30s and 40s. A lot of the people I've spoken with indicate that "beating" the game isn't really their goal; they more enjoy building the world wonders, developing their cities, expanding their civilization, etc. I'd love to see a new console version of Civ so that more people could experience the game (it's been done in the past, although not with great sales).
I'm not saying I want all games to look like this, but more games with user-created content and open-ended gameplay are what I would really like to see. I use Civ as an example because it's what I'm most familiar with, and I think it does a relatively good job of this.
End of 2008 totals: Wii 42m, 360 24m, PS3 18.5m (made Jan. 4, 2008)
