@evan
I can think of a few other reasons that could change one's mind, at least where train and plane are concerned:
- Having to go through complex security procedures (train tends to be easier) cross border
- Having to go way outside the city to get to/from the transport hub
- Noise levels (deafening vs normal)
- Ability to stand up, stretch your legs
- Snack choice and when to get them
- Environmental concerns (fuel per 1000 km per 1000 passengers)