But the reason the advertisers just love those video screen adds is that they are much harder to ignore than a poster.
Movement attracts attention. It's wired into our brains. You see something move in the periphery of your vision and your eyes will automaticly turn to track it.
JDeux in Sydney have started puting 'scolls' of posters on the side of bus shelters (and in railway stations). These have about 5 or 6 posters in a long scoll and they change every minute or so. There have been complaints that these signs could actually be dangerious because the movement will distract motorists from whats actually important - watching what's going on on the road. The arguement is that when the poster changes, the movement will cause the motorist to look sideways at the bus shelter instead of whats on the road. In extreme cases this could cause some one to crash into the bus shelter, as they drive towards what their visision is focused on.
It's an annoying fact if life that in our market driven consumer driven society that advertising is part of the game, and that as the static forms of adversing start to 'wear off', the advertisers will research how to grab attention at lower and lower levels in our neural wiring so the effect can't wear off.
(I hate advertising, as a sysadmin of a 500+ user mail system, I get a LOT of complaints about junk advertising email....)
