Well PAF has bigger territory to defend. So it needs all that equipment to function and serve its purpose.Looking at the conditions of IAF and BAF it gets clearer how successful the PAF is!! How do they maintain 400+ battle ready fighters with a meager budget?!?! Not to mention AWACS, EW, refueling, AD, radars etc.!!! And, that too with extensive ops, training, maintenance, weapons, in-house manufacturing, R&D etc.!! BAF should learn from PAF....
As for BAF, they will have an easier time defending BD, but only if they show half they efficiency that PAF shows. 2-3 smart purchase and BAf can easily defend BD skies compared to the effort PAF has to put to defend their territory.
Heck, the way things are going BA might have to open their own fighter command..