the only way to fly, Renu and I always travel business class where we can, what a difference, depending on airline you get chauffer drive to the airport, lounge with free food and drinks at the airport, priority boarding, top service on board, lie flat seats on longer flights, more leg room, amenity kits, and the better airlines now have premium terminals at their hubs, usually with showers free internet, food drinks etc.
the real confirmation for me was last year when we were delayed leaving Delhi due to fog, we missed our connection in Doha, so Qatar put us up in a 5 star hotel with meal vouchers and free phone calls till the next Manchester flight.