This is, unfortunately, not just a US thing. Dublin to Cork is 20 eur if you book a few days in advance, 32 eur if you book same day, and, if you actually think

This is, unfortunately, not just a US thing. Dublin to Cork is 20 eur if you book a few days in advance, 32 eur if you book same day, and, if you actually think you can just show up and pay _in the station_, 50 eur.