The Southern Crescent often sold out -- particularly on weekends and holidays -- between Atlanta and DC even though its Southern Railway consist was longer than today's Amtrak 19/20 and the Atlanta metro population was one-third of what it is now.
Yes, it is patently absurd that the nation's ninth-largest metro has only one passenger train. But metro Dallas and metro Houston are even larger, and they have the same problem. Meanwhile, without picking on Buffalo for any particular reason and merely to serve as an illustration, metro Buffalo has one-fifth the population of metro Atlanta, Dallas, or Houston; yet Buffalo has four trains. We all know how and why this came to be, but it's nonsensical.