What train would be recomemded from a trip from Boston to New York and how much is the cost of the trip?

The regular Amtrak coach fare is $80 (cheaper with round-trip along with student, senior, military discounts) and the trip is 4 hours. The Acela (hi-speed) can cost up to $200 for 1st-class and only saves you 1/2-hour on travel time. Any trip is a great chance to meet interesting people...