There is virtually no way to really answer that. People quoting the nominal dollar cost are misleading you. Nobody can buy hard drives and keep them running and

There is virtually no way to really answer that. People quoting the nominal dollar cost are misleading you. Nobody can buy hard drives and keep them running and connected to the Internet for $0.10 per PB per month. The fact that they're willing to offer you that price anyway presumably means they're actually getting paid in some shitcoin they hope will go to the moon. If it doesn't, then you'll find out what it was really costing. The other possibility is the global demand is so low that hard drive owners who already found some other way to fund their capex are just charging peanuts for the slack in otherwise idle disk space, but that is inherently a pricing model that can't scale, like airlines giving away seats on a plane that is not going to meet capacity but needed to fly anyway to keep a route alive.