Train fares have become so complicated.The days when you just breezed into a station, waited your turn, and stated destination/bought a ticket are long gone: what you have is a huge difference in fares to the same destination, but according to whether or not you have booked ahead and paid with a credit card, are going at peak/off peak times, a quiet day/busy day, or if the month has an R in it, single, return etc, you don't know if you are coming or going and need a lie down. When you actually board the train, chances are that there will be no seats anyway.