You dont have to be pretty to be succesful. Susan Boyle showed us that a few years back.
Anyway the shelf life of a 737 after a few years of a corrosive work area should be interesting (magnesium alloy) . Even MRA4 the design team never took that into consideration. Years of MR2 and we wrote the book on corrosion, as most experience sails of to the North Sea as it pays 3 times more than the RAF, we can have shiny new jets that look cool, but simple fact is you will have nobody to operate them or use past experiences to maintain them.
Shame really our government sold us out but its all due to cost saving so we accept that.