About 13,000 people - well short of the 21,600 the temporary stadium can accommodate - rugged up in the cold to watch the Crusaders beat the Chiefs 27-13 in their Super Rugby semifinal.
Riach was "disappointed and caught a little by surprise" by the number of empty seats at the all Kiwi semifinal, and believes the last couple of weeks has further rammed home the fact the city needs a multi-purpose indoor arena.