The highest grossing pay per view event in WWE history is WrestleMania 28, which CM Punk went into as WWE Champion. However, his successful title defence wasn't the main event, and the bulk of the 1,253,000 buys should be attributed to the hotly promoted Rock vs John Cena match. Still, Punk deserves some recognition, his run as WWE Champion in this period definitely led to some increased attention for the WWE product. Just being WWE Champion for the most bought pay per view in company history is a remarkable achievement, even if it does have a massive asterisk of Rock / Cena pulling the draw in.
