Not more profitable, but 100% profit. Look at how new sites are popping up on this forum & then advertising their sites here, it's a sign that gambling industry is a cash cow. The owner could be a former player who is tired of losing & wants to try a new experience as an owner. If you see recently a site called Betmoco, I'm 100% sure that the owner is a former player, looking to take full advantage by cheating forum members.
I would also consider the option of creating one-day casinos, a one-time influx of new users, fixing profits, closing the casino, rebranding, and “opening a new one.” If you look at most small/new casinos, they are almost all “twins” in terms of functionality, with a standardized set of games and technologies. Only large casinos are really expanding, developing, and updating their sites, valuing their image.