A commenter on habrahabr.ru+ noticed (http://habrahabr.ru/blogs/gdev/124990/#comment_4110999) that there are Russian black marketers buying bundles for $ 0.01 and reselling for around 50 rubles ($1.50) that, unfortunately, may drive the average price down. Supposedly, people who can't be bothered to get a credit card or Webmoney account buy from them.
I'm worried how the pay-what-you-want model accommodates this behaviour? I hope clients buying directly for a reasonable price will always outnumber the black marketers or people intentionally buying for $0.01 to cause loss, but I don't know for sure.
+ habrahabr.ru is Russian IT news blog filled in large part with content translated from Hacker News.