After a steady spell of buying its way to the top of download charts, Path is plummeting out of even the top thousand iPhone apps—which makes sense, given that the app has never become popular outside of geek niches. But, guys wasn't Path supposed to be worth half a billion dollars, at least?

Stats from App Annie are by no means exact or entirely scientific, but show Path's fall from the top of the charts several months ago.

The better question is, aside from the obvious Why did anyone ever think Path was worth anything?, is Will Path creator Dave Morin continue to attach his high-resolution glamor shot with every Path press release?

You can't have a vanity project without some vanity, after all.