It is a mystery

I ended up grabbing the paid dropbox. It's $100 a year for a terabyte, which is not that cheap as far as data storage goes. However, I already use dropbox extensively, all my phone photos are autouploaded and all of my important documents are on there. 

So it seems like it makes sense. Plus I don't need to go to amazon directly, although maybe dropbox hosts on there, I don't know. 

Tomorrow morning, I'll start pulling my pictures from the server and uploading them to dropbox along with the ones I've got on my computer currently.