Neither the pricing page nor the plan comparison page state this minimum. You have to click into the business section to actually see that.
I've never really understood how companies can offer "unlimited" storage at low prices.
They can do this because these enterprise-facing products offer fewer performance guarantees relative to their developer-facing products. But, ultimately, "unlimited" doesn't mean unlimited, in literally all of these products.
Neither the pricing page nor the plan comparison page make this clear. You have to click into the business section to actually see that. Super annoying.
For the record, I don't exploit this loophole and only tested to satisfy my curiosity. At $60/yr. it's already very cheap for unlimited -- it's my tertiary backup so I'll accept the risk that "unlimited" is qualified -- generic file storage.