Im with Mr J.
Pushing something into a better comp is the result of a more stylized result. Something more like a cutting edge if i can say that. Find the besterer way to show something ;)
Star wars is full of centered shots when it comes to show something.
There's something really, really great about the centered pod ejection shot, and not just because it's classic Star Wars, first effects shot they filmed, etc.
The nostalgia/originality part is not one of my principals as you said also. Again always following the emotion of art when needs a shot. Pushing the envelope each time is hard and finding ways to alter hard framed images to something else. Think limited=get limited Think new=get new. New is not always better but you can find the correct balance through time and feedback :)
-Angel
-Angel