Wholigan makes the best argument IMHO- QFE is a useful tool, but setting 763 mb for Addis requires a more expensive altimeter! As for QNE... it is giving me a headache sitting in a comfy chair with a cup of coffee, the thought of trying to use it while dodging thunderstorms, figuring out the circling approach (I've only ever flown it in the dark, in daylight it would probably scare me) makes me quite uncomfortable...