(CNN) - The airline industry has seen fewer travelers take to the skies in the wake of the global financial downturn and rising fuel costs. The knock-on result is that flight operators too, have had to cut costs. In some cases that meant reducing routes or removing the additional amenities like the airline goodie bags of socks, toothpaste and eye masks. But one thing that hasn't changed is the care and attention paid to the fine wines and champagnes available on board.