Casino mogul Steve Wynn doesn’t understand these crazy millennial kids but he’s more than willing to take their money.

The Wynn Resorts boss showed up at the Mirage resort in Las Vegas on Tuesday to give the keynote address at the 16th International Conference on Gambling and Risk Taking, an event held every three yeas to allow gaming experts to discuss items of industry concern.

It was a bittersweet return for Wynn, who developed the property before it was acquired by rival MGM Resorts. The Mirage was considered a game-changer in the Vegas market and beyond based on Wynn’s belief that casinos needed to sell themselves based on their non-gaming amenities.

Vegas Inc. quoted Wynn defining gaming as “a passive activity” that “has no value.” A roulette wheel is the same no matter the casino in which it resides, while a gaming room is “strictly a receptacle, a cash register.” Wynn believes the real driver of the casino business is “the non-casino activity … the experiential value of the enterprise.”