Sure, just for images without responsibility of 6-8 9's for peoples' treasured decade of photos, you can approach the price. I believe Imgur also has, even pro accounts, a 5MB limit on file size and that brings a set of efficiencies on resources. Fine for pictures, trouble for video.
When 1-10 million people are uploading/downloading 200MB/min for video @ maybe 1MB/sec?, storage stops being the most painful problem.
This would be something of a netflix scale problem, but without some set of minimal control about formats, dynamic content throttling, etc.