A match as big as Punk vs Rock for the WWE championship is way bigger than the Royal Rumble. At the moment, there is absolutely nothing that will take the main event slot away from the Rock. Plus, last year's Rumble was an absolute abomination. They barely have any of their stars entering it, with Sheamus most likely facing Ziggler for the WHC, leaving who? Cena (who may even be involved in the title match somehow), Ryback and Orton their only main stars? One more thing, if they do go through with Ryback winning the Rumble, are they really gonna have the night finish with him standing tall with a Rumble victory over Rocky standing tall with a WWE title victory? No chance.
Oh and I'll still mark like hell, I don't exactly love him but it's still Rocky lol.