I think those who wall off their garden rather then make their NFT's open and tradable with other games on a larger market will lose. I can't trade my Nintendo unique items for a a ship in Eve Online. A dev could even play the competition of eyeballs game and say that one games NFT (built on a decentralized non-company controls platform) will unlock equivalent items in their game, so come jump ship!

And honestly I was not trying to shill. Just saying I think there is an application enough to invest a little see where it goes.