I've lived in New York or Boston my entire life, and travel from Boston to NY and back again about 6 times a year. I've only ever ridden on Amtrak once (from Albany to NY) and it was slow, uncomfortable and expensive. To drive from Boston to NY in a 15 mpg pickup truck costs about $50 in gas and tolls, and takes a little over 4 hours under normal traffic conditions. My car is comfortable and has all my stuff in it, and it costs the same if I travel by myself or with my family of 5. The same trip by high speed rail is 4 hours 11 minutes, and costs $200 per person, and I have to get to the train station early so I don't miss my train. HSR in the northeast corridor is terrible.