Don't know if you've seen Armin at a festival yet but his mainstage performance are really, really terrible. He plays straight mainstream crap and little to no trance (as in actual, real trance). I'm saying this not to be a snob (even though I definitely am, I've come to terms with it, and if this post annoys anyone reading it I'm sorry) but so you may be less inclined to sacrifice seeing other better acts for Armin (e.g. SASHA, PvD, hell even Knife Party given their upcoming album). Also, if you can go Friday you should, the lineup is sick (Jeremy Olander, Fehrplay, Bonobo, Gesaff, Dubfire, Chris Liebing, Hot Since 82, Wolfgang, Zeds Dead...)
So when are you guys planning on flying into the city? Would it be a bad idea to book a flight to get in the morning of your move in date or is that tcr?
It's really interesting that you've had that xperience. I've seen Armin on mainstages many times, and his sets are always trance-heavy, and he usually gets into 140 bpm. The end of his set at TW was a little weird, but that's it. Normally I'd be more excited about PvD and Sasha, but their sets have been more hit-or-miss for me. Also, I'm too old to handle 3 days in a row.
Regarding your other question, I'm driving up, but I'm probably getting there right before my appt.