[mrguyorama]

But this game doesn't

Which is what you were asserting. Gambling with fake money is a lot more fun to non-addicts than real gambling, especially because the system is usually rigged in your favor so you enjoy it instead of optimizing for tickling a broken reward system in your brain so you give a billion dollar corporation every dollar you have.

As others have stated, those machines are designed to give you the stuff, not to take your resources. That's not gacha.