Storage can be far cheaper when decentralized. Sending data over the Atlantic is super expensive compared to LAN networking. Almost all content providers peer with ISP's with onsite hardware. But why stop there, put the "racks" in ppl's basements. Data storage is very compact now a days, you can probably fit 100 TB is a shoe-box.
that'd need trust that they won't run off with your drives, their basement won't get flooded, there aren't power outages often, they have good protections against surges and whatnot...
which at ANY datacenter, is automatically included ;)