Can you say Trancisco's "Sierra 39 Express"? How about "Florida Fun Train"? The costs are just too damn high, both capital and recurring. OBVIOUSLY there are exceptions, Alaska RR, and the Cruise Trains that run on their track come to mind. Reno Fun Train also seems to work, but they are not truly "transportation" in the strictest sense of the word.
The main appeal may be the train, and getting "there" may be the end result. But the attraction is usually something in ADDITION to the train.
There are numerous Dinner Train, and several Tourist Train operators who have been profitable for years, and most likely will continue to do so. But they don't sell "transportation" they sell the experience.
While X train to Vegas may try to do the same thing, (And I too wish them luck) that is selling the "experience", passengers also want to GET to Vegas, THAT is the end game. If they can find a way to do it that is: Comfortable, Price-and-Time Competitive With The Family Car, and Entertaining Along The Way, then they may have a chance.
Working with UP, I have no idea how they could possibly pull this off. Even IF they did, and it was so profitable that they added a second, and third departure, in no way can you compare or equate them to "mistakes in Amtrak management" for not adding back the Desert Wind. (They should) Amtrak, as has been said by some smarter OP here, is designed to be the "plain vanilla" choice. Basic transportation.
If some firm wants to tag on three or four cars behind the newly re-instituted Desert Wind, (hoping here) and lavish the guests on board these special cars with sports bars, great food, dancing, and all that, then fine. Those who want to pay a premium for that service will do so, and if enuff people ride, then they profit.
The
Reno Fun Train is one example of this working. But again, is it really "transportation". (of course it "is", but is that what they are "Selling"?)
Don't get me wrong, I'd LOVE to see competition for my rail-travel dollar. Open up the rails to Virgin, and others.... Oh wait, I forgot, we have this thing here in the US of A called "private ownership", and them freight railroads have to make money too.