Harry would be much better off, time wise and cost wise, by driving.
I consider a lot of factors when I take a trip. Time and cost are only
two of them. We're going up to New Haven later this year on the Acela, a
four and a half hour trip, and pleasant...no Interstate traffic,
comfortable, even scenic in a couple of places, and a decent snack car
and clean bathrooms. No fuss, no muss.
I don't drive to NYC. I prefer the train. There's really very little that
is pleasant along I-95.
Two years ago, we took the train to Glenwood Hotsprings, CO. Buddy's 70th
b'day. Not cheap, but we had a sleeper, and couple meals. Could have
driven, had a better room for the night, and probably cheaper for the 2 of
us. If 4 had gone ride sharing, a lot cheaper. But was a fun trip as a
group. Economically better? Probably not.