If you're using S3, are you really self-hosting? Where is the key philosophical distinction? Can I use a VPS? A co-lo? Or is the only true self-hosting owning p

If you're using S3, are you really self-hosting? Where is the key philosophical distinction? Can I use a VPS? A co-lo? Or is the only true self-hosting owning physical hardware and being your own ISP with tier 1 peering agreements? Personally, I just want to make sure my content is hosted at my own expense. I don't want a free service that makes money on top of my content, I want to pay for the services I need to make my content available. So "pay for your own hosting" seems more meaningful than "Self host."