Equity was a big talking point last Saturday at the second annual Hamptons Cannabis Expo held at the Clubhouse in East Hampton, where the frequent roar of private jets at East Hampton Airport combined with the aroma of roasting blunts provided a handy metaphor for an event top heavy with accounting firms, insurance representatives, cannabis investors, and multistate operators — large cannabis companies poised to enter a New York pot market that's off and running in a big way.