As for the Europe and back in a day argument, it's a very romantic view of business travel. Very few business travellers (white collar and blue collar) actually make day visits to Europe. Full stop.
This is so true !
I also laugh when one reads elsewhere that some "usually Americans" want to work taxi fly overnight across world go straight to another desk/presentation finish taxi back to airport and fly off again .
Its madness !
Most of my international visits include an element of dining when deals are actually closed and you can't do that in a few hours !