I suppose you have to ask yourself if you're there to dance/listen to the music for the music or to listen to some dj 'giving it large' about how much a record means to him or how long he's been after it. Sometimes the prattle can be invasive, other times essential, as when identifying a record/artist new to your ears, for example. Also, one tends to see djs who are totally ratted when they get behind the decks, something that simply didn't happen in bygone days of yore. Not sure if someone who's completely arseholed should be in possession of microphone, it seems incompatible to me...