not to harp on how jealous i am of a real city like denver but their airport is somehow even farther away from everything than ours, and yet they have a train on dedicated tracks running every 30 minutes to union station for $10.50. and once you're there they have trains going out to all corners of the suburbs.
and yes it was expensive and a giant PITA to build and i'm sure it took forever, and traffic during construction must have had the denver wackycats wearing out the term crap show. but look at it.