Why are you looking for a reason that requires NFTs? I don't think anyone led with anything like that, except someone enjoyed the streamlined process of having

Why are you looking for a reason that requires NFTs? I don't think anyone led with anything like that, except someone enjoyed the streamlined process of having their game assets outside the game because of the standardized interface. Developers like the streamlined aspect of implementation, the immediate global audience instead of requiring 20 different payment processes that change all the time, the ability to completely forego making a user model and user state management and user balance management since its all done by the blockchain nodes and libraries, and the ability to bootstrap a community quickly who do all the evangelizing for them. The users like the portability, even when acknowledging that they still rely on the developer to not deprecate the assets or dilute the supply in other ways. The users do look for ways and competing projects that reduce the developer's ability to do that by leveraging the same technology different ways. None of this collectibles and gaming audience is interested in physical objects. This audience was already trading in digital collectibles in games, that just had less portability.