It seems to me there are many rich gamblers who are just gambling to kill time. They aren't necessarily enjoying what they do. I guess they oftentimes physically turn up on the floor, wink at the staff, take a seat, place bet, but their minds are wandering off. They're not reacting to any result, whether it's a win or loss. They're not thrilled when they win. Neither are they down when they lose. They're not emotionally where they physically are.
Well, I haven't been one of them, so I can't be certain. That's just an impression.