Because Etihad takes service very seriously for its first class passengers, its butlers are trained at the world-famous Savoy Hotel. Attention to detail is paramount, and I was thoroughly impressed by my butler’s attentiveness and professionalism throughout the flight. Etihad doesn’t serve Dom Pérignon or Krug. It serves Bollinger Grande Annee 2005 instead, which retails for around $100 a bottle.