Austin sold more merchandise...which is what a lot of people will use to defend Punk. However, it's built upon a faulty premise. It assumes that the fanbases were equal. Austin was able to outsell Hogan in merchandise because he was enjoying the huge global empire that Hogan built. If the WWF hadn't been that big already, he never would have sold that many. Hogan helped transform a regional wrestling territory into a global empire, making it possible for guys like Austin. All Austin did was reap the benefits from the pro wrestling fanbase that Hogan built. If the WWF had already been as big when Hogan started out, this would not ever be an issue. If the WWF had been as built up when Hogan got there, rather than him having to grow it to that size, it would take the combined sales of Austin and the Rock to even come close. Austin's popularity, the fanbase Austin enjoyed, was only made possible because of Hogan's success in growing the fanbase to begin with.