Sat 3 is a great example of what BAA thought STN should be and what it really became. Two big satellites accesed via a one way expensive railway line, all gates with airbridges and attached to a world class beautiful terminal. Later, Sat 3 was added minus the airbridges and no train and when reality set in that the future was Ryanair, the lower level extension was built cheap and nasty. The original Sat 3 is actually fine upstairs, but the downstairs bit is awful. The reality is that any business case for further new builds will look more like the grotty extension than Sat 1. Michael O'Leary described BAA's Stansted pricing structure as an excuse to build "Taj Mahal terminals", i.e. quite nice really.