I would be interested to know the business/ leisure split for these long haul AA services. For a businessman travelling regularly the chaotic and dated nature of the airport until you can get out into the gate area is a real turn off. For AA you are connecting into one of their hubs but how did the arrival time match with onward connections in their network? AA is a Oneworld member and do you get better connections by traveling through LHR? The equipment AA used at BHX did not offer a huge amount of seats so realistically is the airport going to miss it?
Passengers in the leisure market vote with their creditcard and Norwegian are offering some very cheap flights to similar destinations from LGW.