People contemplating 24 hours on an aircraft take into account comfort and service.
Those travelling to Europe are not the same as those travelling on cheap holidays to Phuket, Bali or even Honolulu.
As others have mentioned.
Second tier full service carrier or Jetstar ???
Come on, it's a no brainer.
I don't think their are going to be enough "wood ducks" out there wanting to go to Europe.