And charging people to leave through the airside doors shows a definite lack of commercial realism (or too much time spent at the O'Leary school of economics).
Indeed it should be included in the airports charges as its very miss leading to passengers and they have a cheek marketing it as an development fee when in fact its a fee to cover operations which should be payed by the airlines and passengers pay the airlines. Its doing no favors to people outside Ireland. One thing is certain airlines are making extra profits by not taking it so its the passenger that loosing out in the end.
Besides you save on car parking costs at Knock. Parking literally 2 minutes away from the terminal when compared to the more expensive short term parking beside Dublin airport.
Parking is cheaper at Dublin, a few people complaining about it on the FB page but the great staff at NOC have nothing better to be doing but posting digs to the DAA or SNN.