cheap train travel

[farm]

i hear about people travelling cheap on the trains eg birmingham from london for �8 , i seem to be asked for �70, how do they get these fares.

i particularly wish to travel to scotland on holiday this year but find �190 ridiculous

please help

[THFCUK]

if you book in advance you get a big discount, but the only thing there is you have to catch the train stated on your ticket otherwise you will have to pay extra.