How big is the adult entertainment industry? The most recent numbers from AVN's 2006 report show industry-wide sales to exceed $12.92 billion, although more conservative estimates place this number significantly lower. Every year, the top trade publication for the adult industry, the Adult Video Network (AVN), holds the Adult Entertainment Expo in Las Vegas, which is touted as the industry’s largest event worldwide. The Adult Entertainment industry, although taboo in nature, is serious business.