Here's a letter from a reader that stimulated me to write an article. People in the know, such as yourself, invariably recommend drinking lots of water in-flight, and light, healthy eating. Airlines recommend travelling in the luxury of business or first class where you pay exorbitantly for the privilege of eating heavy, unhealthy and alcoholic meals. Some business travelers even claim that first class offers them opportunities to network with potentially lucrative business partners, buyers, sellers, and deal-makers, so extra air fare then adds up to more than just snob appeal. For me, the most significant first-class perk is oxygen.
First class is also about personal space.
In first class, there's also less time waiting on line for a lavatory because there are fewer people.