The 737-900ER has been stretched beyond its usefulness. The 75 is not only a "hot rod", but it out performs the Guppy in just about all categories. It goes higher, flies faster (albeit not much), lands shorter, and has much better short field characteristics. The systems are also more automatic and better. The only statistic that the Guppy is better than the 75 (on paper) is operating cost. But what is not figured into those metrics because it's largely not quantifiable is the bad faith that we gain when we have to stop for fuel because we can't provide what we've advertised. Non stop flight to a destination, because Delta and American can do it (from the passenger standpoint). It looks like "amateur hour" from a passenger/customer standpoint.