I upgraded to a bedroom on a 30-hour Amtrak ride. The additional 20 square feet of space was worth the extra $500.

The reporter stayed in an Amtrak roomette on her way to Miami and a bedroom on her way to New York. Joey Hadden/Business Insider I spent 60 hours on overnight Amtrak trains traveling round-trip from NYC to Miami. I booked a 20-square-foot roomette for $500 for the ride to Miami. On the way back, I booked a bedroom for $1,000. It was twice as big and had a full bathroom. What makes a 45-square-foot room feel like a luxury suite? A 20-square-foot room with no shower. I'm not talking about hotel…