American shortlines are essential to the gaint class 3 railroads, as they provide conections to customers and company's that ship via rail. They also are some of the most unique and interesting railroads you will ever learn about. Every day i find pictures of shortlines that i never knew existed, and these shortlines usaully have amazing stories and scenery. But what i love the most is the character, shortlines can afford to have carracter as they don't have a huge infastructure to support. Class 3 gaints have thousands if not millions of miles of trackage and the most economical way to keep it all maintained is to make it uniform. Shortlines don't do this mabey a few of the class 2 bigger ones but the majority don't ever change much from what originally was there. Shortlines in TSW would be great as they would alow for a variety of rolling stock, operations, and scenery for the player to enjoy. They also aren't as big of a time killer for those of us who have short attetion spans, ADD, or not much time to dedicate to thier love of trains.