Comfort in terms of functionality and easy interaction in the casino plays a higher role to why an individual would want to stay longer in the casino. Even after losing so much, they might want to get more money and come back. I dont think it is a tactics for the casino to keep you longer, I think they are doing everything possible for you to have the best experience while gambling in their casino even if it is for a short while. Well, that is the least you can get, it will be more painful that while your spinning on slots games, you dont feel the whole casino vibes, including sound, animations, and RTP.