However, Trust House community support manager Craig Thomson said a number of local organisations wouldn't exist without funding from gambling proceeds.
"Last year $2.8 million [in grants] went to Wairarapa, Rimutaka and Flaxmere ... so it's huge for the community. If the funds go down, then the grants go down."
Venues were expected to contribute at least 37 per cent of their machine profits, but most chose to give more, Mr Thomson said.
However, it was a double-edged sword, he said.
"If the grant income drops, that's a good thing because there's not so many people gambling."
Trust House encouraged problem gamblers to "self-exclude" from venues, and to seek professional help.
Nationally, machine numbers fell from 17,670 to 17,266 and gambling spend fell 3.3 per cent from $839.7 million to $811.6 million. Pokies are New Zealand's most harmful form of gambling.