The proposed service change through Amarillo is certainly worth considering. However, it is likely that some people haven't considered the value of serving Colorado and more cities in Kansas. Actually, the greater Colorado Springs area including Pueblo has at least a population of 600,000 people which is quite sizeable and therefore a prime target market for Amtrak. Colorado is a growing state and improved rail service would benefit many and serving COS would benefit Amtrak.
Consider for example, a proposed service change for the SWC running from Kansas City to Raton, NM on the former Rock Island route. There are formidable cities on that line including westbound from KCY, Lawrence, Manhattan, Topeka, Junction City, Abilene, Salina, Russell, Hays and Goodland, KS, Burlington and Limon, CO and on into Colorado Springs. The previous connection from Limon to COS is now a bike-path for a portion of the distance so a rebuild and sharing of space with the bike path would be needed.
But there is a solution:
It appears that a number of $500 million was mentioned for the SWC restoration project in Colorado and Kansas. A question is would the rebuilding of the RI route from Limon to COS cost about $70 million? After the proposed rebuilding of that line from Limon, could not multiple Class ! carriers share the line with Amtrak into Colorado Springs, making a convenient Kansas City connection for several railroads?
With a proposed new extension to Limon, a very substantial increase in Amtrak service to new communities could be presented and grown. The former SWC cities La Junta, Dodge City, Hutchinson and more could be serviced as a bus tie-in to Amtrak services. The Heartland Flyer service could be extended to Topeka or Emporia and KCY to create a link to Texas and a link to Kansas towns without Amtrak services.
This is an idea that should be debated and considered.