indeed. Think how far airlines would get if they said: " Sorry! We can't give you a quote. We don't know if you will use the on-flight entertainment on the fli

indeed. Think how far airlines would get if they said: " Sorry! We can't give you a quote. We don't know if you will use the on-flight entertainment on the flight, or if you will end up clogging the toilet midflight, or if you will eat 4 bags of pretzels. There's also the chance we will have to make an unscheduled stop due to weather. That is why we can only bill you once we arrive at your destination"