It followed an interpretation of liquor laws by police that many large events were breaching liquor laws by allowing BYO alcohol.
Peters also blamed "too many old males" for holding back racing development at some courses.
Peters said racecourses in the regions such as Ruakaka at Whangārei were not using their assets to their full potential and could use some of their land for developments such as retirement villages to raise revenue.
He pointed to the example of Riccarton Racecourse in Christchurch which last year got approval to use some of the land around the racecourse for housing developments.
"You've got them all round the country where they could be retirement villages and places like that. Christchurch is starting to realise that. But these clubs are sitting on assets and, dare I say it, too many old males not giving other people a chance to make a contribution to the health of the racing industry locally."
Peters also pointed to China as the racing industry's possible salvation, saying the liberalistion of the industry in China would open up opportunities for bloodstock exports.
He said he had met with those involved in the industry on his recent trip to China including a representative for Chinese billionaire Lang Lin – nicknamed Mr Wolf.
Lang was a regular at the Karaka sales and exported horses to Inner Mongolia. He was a driver behind the fledgling racing industry in China and his NZ-based company donated to National at the past election.
Peters said New Zealand could be exporting three or four times as many horses as it did at the moment.
While betting on racing was not allowed in China, he said there was an $8 billion investment to establish the industry.
"And a whole lot of people such as Lin Lang and others who are enormously enthusiastic and I can see it, being the Chinese, it won't be second or third class, one of these says it will be great."
However, he was less keen on letting Chinese foreign investors set up base in New Zealand for breeding, saying that was simply "letting your grass to offshore ownership."
The main gain for the industry in the Budget was tax breaks for those buying "standout" yearlings with the intention of breeding for profit.
He said any foregone revenue from those tax breaks would be more than made up in the taxes gathered on higher sales from breeding.
Major changes to the industry will await a review of its governance structures and racing legislation by Australian horse owner, breeder and administrator John Messara.
Peters said obstacles to the industry included outdated infrastructure and low prize money.
Peters has campaigned on an all-weather track and higher prize money and said those remained targets.
