There is really nothing to see at their shows. You just go for the lasers, lights and LED screens. They really do nothing except look like they are working for a minute then they talk for about two minutes, then they raise their hands and look like they are having fun. Then Steve Angello goes "We are Swedish House Mafia." So case in point. They really do nothing special at their shows. Sorry to burst your bubble
Rolling Stone talked about how most sets are pre recorded without some beats or drops then they add them in live. Which is kind of a disappointment. When I saw Deadmau5 live he seemed to be up there jamming to his tracks until he went to blend in one track with the next. Saw Timbaland live and he mixed stuff live right on stage for us during his Shock Value tour.
I just wonder why these people get paid so much for not really doing a lot.