Airport information boards

[PAXboy]

The great things about the flip-flap boards was♠:

1. The letters and numerals were large enough that you could see them from a long distance away.
2. You could sit on a bench (remember when airports had those?) and read your book or newspaper without having to look up.
3. When there was a change in the display, you heard the flapping and knew to look up.

Now:

1. The screens are cheap to buy and very small, so you have to get closer to them, or use binoculars. I have used the zoom lens of my camera before now.
2. You cannot stand (no seating) far away so you must stand near to the screens, which causes a crush.
3. You have to constantly glance up at the board to see if there's been a change. They could have a small beeper signal on the board, but that would mean thinking about the customer and spending money.