hahaha...i hadn't even seen this before i posted...what you say is true, though...deadmau5, or any other dj for that matter ain't music...dj's play music that someone else made.
maybe a wedding dj does that, but a artist like deadmau is creating complex music using samples, beats, and various sounds to a beat/rythm.
ever seen a mixing board, not a simple piece of machinery...not saying you have to like it, but at least understand that it is not simpleton shit