Some stories are abbreviated and some lists are not sequential.
I’ve had billionaires as passengers and it’s a mix of things that
@derg mentioned and much more.
Imagine landing in a country with few English speakers and you need to take care of mechanical issues, catering, aircraft hangars or ramp space, dispatch responsibilities, fueling, and more.
Some 121 guys can’t deal with.
The hotel thing makes sense to me, client wants an additional level of privacy. I hate it when hotel arrangements are in the same hotel and client wants to hang out with you or have face-to-face conversations about changes in scheduling and logistics.