Guern, as a civvy and tax payer, are you prepared to pay for dispersal of numerous airframes around the countryside.
I'm only doing devils advocat stuff here, as some of the powers that be do try to provide economical defence. Before anyone else jumps at me, I am not backing the plans of the masters and Generals, just stating that unfortunately, money drives most things. Economic cuts can no doubt be found throughout all aspects of defence....... Re-location of assets is often a harsh reality, even thought the hurt is personnel etc.. sometimes the hurt in one area is considered to be less of an imbuggerance.
I don't necessarily agree or disagree with this concept, I only hope that you can apreciate that money is unfortunately a major driving force in all aspects of defence policy.