When you see the cost of replacing a mirror, it'd be cheaper to have a camera and a 7" screen inside.
On the other hand, night vision would suffer from having a screen on.
Until that camera and/or screen needs replaced.
Slashdot stories can be listened to in audio form via an RSS feed, as read by our own robotic overlord.
No problem is so formidable that you can't just walk away from it. -- C. Schulz