How much is a ticket to Barcelona - Real Madrid in the Clasico worth?

There have been no tickets available in the offices at the Bernabeu for the Clasico between Real Madrid and Barcelona for several days now. 

It has meant the tickets that are avaialble through other means come at quite the cost.

Seats at Madrid's stadium with an average view have been fixed at €700, while the best seats in the house have not fallen below €1,000.

Re-selling tickets isn't legal in Spain, but people have found a way around it.

During the week leading up to the game, there have been ads on various websites offering pens for €900.

Buy the pens, the ads read, and you would also receive, "as a present", two tickes to one of the world's biggest sporting events.