Aside from hiking up prices, the one thing that really annoys passengers is reducing their space. At 30,000 feet, personal space is money and we are willing to pay for more legroom or an emergency exit seat. So it comes as no surprise that travellers on the American Airlines 737-800 routes are not happy. After saying it wouldn’t happen, it seems it will. The American Airlines Densification program has begun with the airline cramming in 22 more seats per 737.