So I did indeed pick up Quake 4, and at quite a bargain price ($30 at Target on Black Friday; there were shockingly fewer people out shopping than I had anticipated). So far, this game has been very enjoyable. The action is fast paced, the story is moderately interesting, and the levels aren't quite as dark as in Doom 3. In short, this is the game that Doom 3 should have been. One of the in-game sequences is incredibly painful to watch. Without giving too much away, let me say that you will most likely wince in pain as you watch what happens. I know I did.