Envoy 320 - I agree with you insofar as an extra £1 charge will not in itself make people choose a different airport to fly into/out of but it all adds to the mix.
All I would add is that one poster has already stated he will fly into LHR next time from DXB; I'm off to EMA as I now live equal distance from BHX and EMA and one is as convenient geographically as the other. Being a brummie, I'd rather support what I still consider to be my local airport but silly additional charges like this just put me off, unless I'm taking hand luggage only. I just wonder how many other people in a similar position will feel the same.
Scott