Money is still the real reasons why we gamble, been addicted or not, mutual greed or not, all gambling is done to make more money or get some form of reward in the end.
That's an interesting, I think that a majority of gamblers like the aspect that real money is involved and that they have the chance to make a big profit from it. In case the casinos would offer only games with paymoney I think the play numbers would drop quickly. For me personally it wouldn't be such a big change, because I like to play all kinds of games for many years. Shooters and strategy games I have been playing for 15 years and gambling is part of those games to. Opening loot boxes and taking part in skin raffles is another form of gambling I enjoy, same goes for playing poker or black jack. If both those games would only be playable without real money I would still keep playing them. The games are fun and money is only part of the excitement, not the main focus. Gambling with the sole purpose of making money doesn't work out in the long run, it's better to have different motivations behind our hobbies.