easyjet
thought this was of interest, as we know easy jet just bought 120 airbus a319s (1.95Billion) for delivery upto the end of 2007 over boeing - the reason because airbus offered a 50% discount. but this is the interesting bit, easy jet also took an option to buy a futher 120 a319s for delivery upto 2012. AND easy jet have an option to buy Deutche BA which they have yet to exercise. unfortunatly I doubt any of us are no spring chickens but thought it was of interest.