Looking gifted horse in the teeth. Apple/Lala are giving him a 100 bucks, despite not being obligated the slightest to do so. But obviously for some people even free is not good enough.

edit: seriously people, read todd3834's comment bellow [ http://news.ycombinator.com/item?id=1307514 ]; unused credits can be refunded - USED credits (i.e. the money one had spent to practically rent the music) are given back as iTunes store credit;