I needed to buy a train ticket to Alnmouth this morning. When I checked on-line, I was told that the cheapest fare from my local station was £62. This seemed a bit excessive, so I checked the cheapest fare from Glasgow Queen Street instead: £43.20. Adding single fares between home and Glasgow, that comes to a total of just£46.80!
Moral of the story: If you are buying a train ticket on-line, always check the fare from your nearest mainline station to your destination.