Matter of fact, loooooooong list of advantages, but to name a few more......
- no need for PAs.
- no need to circumnavigate ugly weather, just strap on and
- no need to worry about turbulence, delays, diversions, ride reports and the lawsuits from stupid American pax
- nobody bitches about too cold, too hot....
- no Cabin attendants to screw up your marriage
And so on......
Life's good