cross country travel by rail is much more enjoyable than flying, even if it takes 2-3 days.
Not in my experience. I took Amtrak from Atlanta to DC in 2008, and it was basically a 13 hour flight -- same kinds of seats, only marginally more space, and the food service amounted to paying exorbitant prices for awful sandwiches that could have been vended from an office machine. I would prefer to spend 10 hours in an airport and 3 hours in flight, given the chance; airports are at least quite comfortable, in general.
Rail seems like it would be a win for someone who was mobility impaired (wheelchair, old, morbidly obese, etc.). The only other viable option would be a specially outfitted car or bus.
The times I've taken Amtrak (mainly for amusement value; Seattle-SFO and SFO-DEN), it was mainly old people (many of diminished mobility), some religious groups (mormons? menonites?), and foreign tourists. And mostly empty seats.
Not in my experience. I took Amtrak from Atlanta to DC in 2008, and it was basically a 13 hour flight -- same kinds of seats, only marginally more space, and the food service amounted to paying exorbitant prices for awful sandwiches that could have been vended from an office machine. I would prefer to spend 10 hours in an airport and 3 hours in flight, given the chance; airports are at least quite comfortable, in general.