The parent post just stated that he made 5-6k per month off of a single iPad app. Can you back up your claims with facts?
Wrong. The parent post claimed that the higher cost app $12.99 led to much higher revenue than the lower priced apps at FREE with ads and $.99 to $1.99 cost. In fact so much so that the parent post wrote that no more low cost premium or premium apps would be developed.
Please, do your research so as to not waste people's time correcting you on this website.