Someone who is wealthy and has a million in his bank account might have found it a fun experience and had some fun with that 20k. However, there are also players who have 21k in the bank account and then gamble all 21 completely. Then you are also a high roller, but I think it will remain a one-off adventure. High rollers gambling profitably seem surreal to me or they are inconspicuous. Then you could still do good business with high stakes poker.
The problem for those who have millions in their account and want to enjoy (adrenaline) from gambling is that in order to get this adrenaline they have to bet sensitive amounts. Just as you won't worry about a one cent bet, they won't worry about a bet that seems huge to us. Therefore, it can be said that if high rollers decide to enjoy gambling, they risk amounts that are sensitive to them.
There is a certain tendency for the great apostators, in the threads of some casinos I have realized that those players who have millionaire profits bet only in slots, I think that they have in their mind that the slots are the best option to earn large amounts of money . When we play Poker or Black Jack, even any game like Crash, the profits are somewhat predictive, unless you play in Crash betting a 5x, 10x and yes, it is likely to win, but it is the only way.
In the slots there are many options, suddenly a 6x comes out or a combination is made and then a 6x is made then the profits are very large, even with little balance you can give great profits, and if a player bets $3k, $4K , the profits are millionaire, I think they are based on those characteristics to be able to play and win.