If you are extremely rich and you can just gamble up to your heart's content, does the novelty of winning wear off? Like would you get tired of gambling since there's really not much risks because you can gamble with any amount and still receive little to no consequences?
Rich people gamble with big stakes, so the thrill of winning and losing remains. This is why some wealthy people remain addicted, or you might see wealthy athletes gamble because they want the feeling of winning.
So, whether rich or poor, the feeling of winning or losing can still be felt, as can boredom, but it's not because of being too rich.