Why is the hype level for Rumble under 9000?

A new champion's hype level is demonstrated by the amount of threads created by impatient LoL players who can't wait to get their hands on it. We all remember how hyped up Jarvan IV "the Dragon Knight" was in his pre-release stage. Jarvan boasted huge damage potential and teamfight capabilities, as well as exciting new mechanics that guaranteed his success as a new champion. We also remember Renekton having the same amount of pre-release hype for similar reasons. Before Jarvan and Renekton were released, I remember passing by the LoL forum and spotting tons of "we want XXX" or "is XXX going to be [w.e]" threads. For Rumble, however, not many people seemed to care about his actual release; even less players would rush to buy him on the first day of release.