Geoff, you are very right, and only this year I was asked to send our nearly 20-year old linear accelerator out to Sudan. I told them quite frankly that it was going to cauase them more problems than it was worth even though I would go and work in my spare time doing exactly what you (and I) have done on many occasions in the past in developing countries. But there is a market it seems and I suppose that the resourcefulness of the technical 'locals' in these places to pull out rabbits from hats where, by our standards, rabbits would normally have perished before being taken out, is to be reckoned with. Quite where safety comes into things once up and running, I would shudder to think on it! By the way, where is Jebbel Ali?? or am I being (as ususal) a bit slow on the up-take here?
Your quote "what it really needs are people to go out and lend a hand" is true enough, particularly if they can afford to go for a decent period of time to teach others what they know! Few can afford the luxury I fear of dedicating a few years here and there during a life-time even though perhaps we should do.