A train designed partly as the first and last part of a casino visit might be able to sell table seats with a cash bar as revenue seats = use for a couple of V-diners. Gulf Coast Club might be a good name for that. (Yeah, I know I want table seating everywhere; I like sitting at a table for a couple of hours and I see the available tables filled up a lot of the time.
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Also, since folks have been discussing Business Class here: Are there any routes where businesspeople (executives, corporate managers, owners, of substantial companies, maybe lawyers, and similar suit-briefcase-and-office people) travelling for work are the main customer base for business class? Are there any routes were such people are substantially more likely to go business class than coach? Is there any chance that a Gulf Coast service would attract many such people? Are there any routes where business class is set up to cater to people who want to conduct business at their business class seat? Or is Business Class just what Amtrak calls what most of Europe calls First Class, what Norway calls Comfort Class, etc.? (For some reason thinking about why it's called business class and what people might expect that to mean reminds me of an old thread about passengers, especially foreign passengers, thinking that they would not be allowed to bring full-sized suitcases on trains that said No Checked Baggage in the timetable, because they thought Checked Baggage referred to the size of the suitcase, not the service of someone stowing it in a special place and giving it to you at the end of your trip.)