hammerb32,
BHX serves much more than the city of Brum.
If one forgets about LoCo's, and their are a vast number of the travelling public that have will do their utmost to avoid travelling by LoCo, and think 'proper' scheduled service, worldwide network destinations, then BHX serves the middle of England, between LON & MAN, and much of Wales also.
Which other airport, between LON & MAN, offers worldwide destinations with the likes of KLM, Swiss, Lufty, SAS, Sabena, Frog Air etc. etc. etc?