Just have a look at the registration cost for a non-official event....:
Registration Costs
December 14th 2009, 11.00 AM January 11th 2010, 11.00 AM 1.100 €
January 11th 2010, 11.01 AM March 9th 2010, 11.00 AM 1.300 €
March 9th 2010, 11.01 AM April 27th 2010, 11.00 AM 1.400 €
April 27th 2010, 11.01 AM June 1st 2010, 11.00 AM 1.600 €