Bollocks!
You can get a return (well, two singles) for £40 Kings Cross to York. I refuse to beleive it'd cost you over £60 for a return to Kings Cross from Croyden!
Plus if you're under 26 (I think you are?) you can get a Young Persons Railcard for twenty quid which saves you 1/3rd of pretty much all train tickets you buy for the next year.
Welcome to the world of cars!
Should have got a diesel :P
Well I'm not surprised at the cost for a pair of first class singles.
I've just done a search on there for Croydon to York on Saturday and York to Croydon on Sunday. Standard class, no railcard and £21 each way for a total ticket price of £42.
Now book your tickets and get your arse along :)