No game developer would do it for free, correct, but they wouldn't be able to centralize those items around their control. The game itself would have to make mo

No game developer would do it for free, correct, but they wouldn't be able to centralize those items around their control. The game itself would have to make money, and the items being operable with the game without too much cost (that's why I said "fairly enough") would attract users to the game which may be monetized in other ways. As for your other points they were already addressed. Did you read my whole comment before finishing yours?