Sure, but data storage is quite cheap these days. I'm not saying it isn't a problem, but a 12 Tb raid goes a really long way, or AWS s3 charges pennies per GB per month and solves all your problems if you're prepared to spend tens of dollars per month.

Bandwidth on the other hand is either inaccessible (read: you have a normie ISP that has at most 2 speeds to sell you and neither of them have guarantees), or extremely expensive, on the order of thousands per month. On top of that, if you happen to pay AWS for storage, each request must be forwarded to AWS, converted in some way by your server then sent to the client, which means it eats both up and down bandwidth. Of course, if you know what you're doing you can use Amazon's CDN but at this point administering your instance is a full time job and your expenses are that of small company.