Most airlines don't bother refitting older aircraft, or if they do it's just upgrading the entertainment system. Top tier airlines (e.g. Emirates and Singapore)

Most airlines don't bother refitting older aircraft, or if they do it's just upgrading the entertainment system. Top tier airlines (e.g. Emirates and Singapore) typically refit their aircraft every 10 years, which involves pretty much reassembling it from scratch, so they don't feel as old. https://m.youtube.com/watch?v=3hLXP1R8y6o https://m.youtube.com/watch?v=3hLXP1R8y6o