Couldn't there be a theme park building game that offer you a choice on what level of detail/difficulty you want? By this I mean going anywhere from just building rides and working with balancing money to building rides, hotels, backstage areas, car parks, creating construction sites and everything else that real theme parks have to consider while balancing money and reputation.
Some may say this is tedious and doesn't need to be included but I think that it shows devotion and care into the subject you're making a game about as well as hitting that audience that hasn't had a full on simulation yet.
In addition to this, if VR catches on in the future you could add the feature of role-playing as one of your guests and see if your park meets your expectations and hopes.
