European-like typing detected.
Rail travel in the USA is extremely limiting outside the northeastern USA. Boston to Washington DC, OK, fine. Do you want to go west of that? I hope you wanted to go through Chicago or New Orleans.
There are some states in the continental USA that are barely or not served at all by Amtrak (Kentucky, Idaho, Kentucky, (east) Tennessee, South Dakota and Wyoming) and there may not be any rail services that connect to metropolitan local light rail. In some place, such as Las Vegas, the "Amtrak Stop" is a bus depot that takes travelers to a completely different state before they get on a train.
I lbought an ORD to LGA round trip flight for $60, inclusive of fees, yesterday. The flight takes an hour and a half. Amtrak wants ~$170 and needs 19 hours to go one way. If I were to try to take Amtrak from relatively close South Bend, Indiana and Kalamazoo, Michigan, I'd need more than 12 hours for what is at most a 90 minute drive.
The USA screwed up by not prioritizing rail as a way to travel. I'd love to take trains more places. But trains tend not to go places Americans need them or on anything like a desirable schedule.