Fun stuff, minus the indignities of air travel of course. For one thing, there is nothing appealing about being sealed in a long metal tube. Do so for ever-longer periods and you are likely to end up grumpy. When passengers are grumpy, flying becomes less fun; and if something isn’t fun, why do it? Early flyers were more fortunate. High fares limited who could fly, the result being a select few could experience luxurious service for hours.

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