Fairdealfrank.
I think we also have to throw into the mix that its been reported frequently that the Govt may allow LHR and LGW to get new runways.However they will not be stumping up any cash.
LHR may be ok to raise their own Gatwick perhaps slightly harder.
However very likely the airports would then have to recoup their money by raising landing charges.
So not sure Ryan Air or Easy Jet would be that keen to have to pay higher landing fees and move from their cheaper current bases.