Still, good to see people clamoring to ride the rails. A pity Amtrak has such an equipment shortage it can't add more to the consist on days like this, but I understand the logistical issues even if they could (deadheading back east among others, unless this group would be doing a RT).
An equipment shortage has nothing to do with this. At this point, this train is almost maximum length for DEN. It holds 14 pieces of equipment on the pit. The consist is up to 11 cars (1 bag, 1 transdorm, 3 coaches, 3 sleepers, 1 diner, 2 lounges) and you have at least 2 diesels, for a total of 13. You have one more piece to play with and I'd bet real money they add another diesel, which would max you out.