DIA has the latest stats on the number of pokie machines in New Zealand.
Since 2008 the number of pokie machines in New Zealand has dropped by 2,613 and in Auckland by 612. These are relative declines 13%.
The convention centre deal with Sky City allows them 230 additional pokie machines. This is around half of the annual drop nationwide, so even when implemented there will be fewer pokie machines than the year before, if this trend continues.