This is what it says on there website, such a shame for a lovely show (apart from the weather they have sometimes on the show days):
URGENT NOTICE
It is with great sadness that the board of directors have made the difficult decision to cancel the 2010 County Show. This decision was not taken lightly and after considerable deliberation the board were presented with no alternative. Please note that any parties that have paid trade stand monies or entry fees will be contacted in due course.