Reg free at the most!!.... Unless it's a good single word domain, .ws extension (unfortunately) has low resale value
I'd make it into something like Failblog or PeopleofWalmart and slap some ads on it. Could go viral and you wouldn't have to upload the pics!
If you ask 100 people on a busy street the top three domain extensions, all of them will most likely say .com, .net, and .org. None of them will say .ws, .info, .mobi, or any other extension. In my opinion, even if you do develop it, it won't go viral. $0 - reg fee.
The average Joe doesn't know that other extensions beyond .com/net/org/info exist... Even so, it's a fairly nice domain. I'd try auction it off on Sedo.