> What about a train between Chicago and Detroit?

I've ridden the Wolverine, it isn't half bad.

I 100% agree trains might be underfunded in the US. The LA to NY flight will stay preferred to a hypothetical high speed train due to time. It is unlikely ever to be less than 10 hours.

For train rides under 4 hours, and if you can get trains running smoothly (less stops), the time spent on the train and the overall integration of trains is a lot better as a mode of transportation.