[ekianjo]

You could have cameras and screens instead of windows. Much, much cheaper in the end.

[DuskStar]

Windows tend to work slightly better after running into the ground than cameras, electrical systems and screens do.

(A broken window still lets you see outside)

[ekianjo]

You don't need to have a window on every seat. You could have a few real windows on the side and complement the missing ones by screens.

[scotth]

Doesn't seem like the kind of thing you can rely on in an emergency.

[Zenst]

Maybe, though such footage would be useful in a black-box for post-incident/post-flight analysis as a visual comparison to the recorded control/instruments - could only help.