Well explained Woofrey.
£43.60 doesn't buy much concrete.
Meeters and greeters don't spend much money at airports, yet they take up a huge amount of room. Walk around any arrivals hall and watch them. They stand there gawping at the monitors waving their crappy bits of paper. They don't browse the shops or relax with a coffee.
That's why airports don't spend much on looking after their arrivals halls: there's no retail spend there to pay for it.