Next questions:
1. Would the ticket cost less than an airplane ticket?
2. Would the train be more environmently friendly than the plane? Consider the impact on the environment of building the thing, in addition to the energy requirements to run it.
3. Would terrorists be less likely to attack the train than a plane? (Consider the Japan poisoning incident.) If terrorism is equally likely,then we can expect to have to arrive at the train station 1 1/2 hours early, too.