Why on earth would you disable so much HBM from the factory. That's incredibly wasteful. No wonder these things cost an arm and a leg. It was already clear the money was going to the HBM primarily. Either the post is wrong or this is actually rediculous.

Human psychology and money. If I offer a small, medium, and large of something, you're more likely to buy something rather than if I only offer one thing and you must like that one thing.