Exodar Disco has gone beyond mere machinima. It's an obsession. It singlehandedly inspired huge portions of the WoW Insider staff to give a damn about the draenei. If that's not the power of machinima, I don't know what is.
Interested in the wide world of machinima? We have new movies every weekday here on WoW Moviewatch! Have suggestions for machinima we ought to feature? Toss us an email at firstname.lastname@example.org.