The purpose of a "virtual reality" game is for a person to experience an immersive reality of seeing/experiencing the fantasy world of magic, combat, war, etc. That is why, most VR games are associated with shooting, sword fighting or magic. Creating a VR game that focuses purely on gambling can be a bit mundane and boring to begin with as it can be easily done if you would just visit a physical casino yourself.
Despite the benefits that the Metaverse brings to gambling, what do you think is the worst impact the Metaverse has had on our gambling lives? will people be easily attracted to migrate to visit the metaverse-based casino gambling? Most likely so far it will not be too significant because the level of effectiveness of the Metaverse at all is only for those who have a large cost.
You really have to consider the extra costs you are paying with the metaverse, I have not really researched it all that much by myself but as I understand it, you need to invest a bit of money like in VR equipment as so on. And as far as these things go, the metaverse is really a bit too new not to have any bugs or exploitable code that might lose you your money. Keep an eye out and see how it develops-