What's wrong with uploading 200 photos to Flickr? Sharing 1.8GB of photos more than once on Dropbox (who deletes things like this?) means you need a paid Dropbox account. So even if this was in the Past when Flickr didn't have an "unlimited" free account, you'd still need to pay for something.

The only way I've found Flickr isn't good at sharing a large number of photos if you want/expect some people to have high res versions of all or a large percentage of those photos on their computer so they could print them offline or something.

Still an unsolved problem there, but if all you were going to do was "host them on a hostname", I'm not how Flickr doesn't address the need very well.