Edit: let’s not even bring up the kids factor. If you’re traveling with kids this absolutely isn’t an option at all, and my kids are good travelers. This is basically for retirees and people not in any hurry which basically excludes everybody I know other than my parents.
Everyone has different perspectives of course but I loved taking the train as a kid from eastern Iowa to Chicago with my parents for a weekend. It was fun. We could move around. Easier to eat and drink and just overall more comfortable. Mom didn't have to drive. Didn't have to pay to park. The ride was part of the fun as opposed to just a means of getting there.