If you are a smart gambler you should know that gambling won't in any way be profitable especially for long term. You should realize that gambling isn't really meant for profit or earning money but to pass time even before in the old times. There may be some exceptions like professional poker players and tipsters but we'll be talking a very few people then
I think smarter people take advantage of noob people that think gambling is the way to get rich. This casino owner can say that gambling is profitable in long term, but players will said otherwise and those who never tried to gamble will make a strong statement that gambling is not profitable in the long term, but how they would know they have not tried it anyway .