Why do some people not book flights directly with the airlines?

I was talking to some friends about what we’d do if money was no object… I mean euro millions winner level. And 5 star travelling is one of the things we all agreed on. The sort of trip where you are collected, or your car is valet parked at the airport. Bags are delivered to your destination hotel, and unpacked, and people transport you all along the way with zero waiting and effort.

I don’t really mind collecting hire cars for instance but increasingly hire companies are sited away from airports and shuttle buses are needed. And then I see someone getting their car delivered right outside the airport and I have serious travel envy.

In the meantime I shop around and book directly or via websites,,, whichever is cheaper.
 
The sort of trip where you are collected, or your car is valet parked at the airport. Bags are delivered to your destination hotel, and unpacked, and people transport you all along the way with zero waiting and effort.
It's that that expensive to get this part sorted (not sure about bags being unpacked, wouldn't fancy that).