You will own nothing and be happy, as the saying goes.
You can only license a console's underlying software, not own it.
You can only license a console's underlying software, not own it.
Nintendo turning off your software should fall under some kind of consumer protection law.
I don't own the intellectual property of a physical book I purchase, but I do own a copy of the book and the copyright owner can't just show up at my house and redact the whole book or just take it from me.
But somehow if they do it with software it's different.