Here's some better ideas:
- harden up the way users want to use the public folder and make it more like a CDN
- Add another price tier if they must to ensure it works!
- Let users host web sites out of their public folder! Hand craft HTML still has a place among basic users who just want to put up a web page about their dog!
- put media specific folders in the public folder (maybe at different price tiers) and turn it into a flickr/soundcloud/youtube competitor!