I spent 15 hours on an Amtrak train, and 7 surprises made it worth the $400 price tag

Business Insider's reporter took a 15-hour Amtrak train from Denver to Salt Lake City in a roomette.

Joey Hadden/Business Insider

• I took a 15-hour train ride from Denver to Salt Lake City on an Amtrak Superliner.
• For $400, I booked a 23-square-foot roomette accommodation, and my ticket included meals.
• Seven unique aspects of the trip made it a surprising and worthwhile experience.

I've spent 140 hours on overnight trains, and my most recent trip still managed to surprise me.