not a crap shoot at all if it shows avail for pickup...its a real, open, non sold unit at that moment...If oyu are not ready rto buy it (not that reserve stuff) but transact online the whole thing, then it will be gone when you look again. Thie process is not for indecisive people. Also, you must be flexible, I was willing to take any 64/128 ATT unit avail, colors or size open.
snagged mine at 4 am sat morn (6+ 64 space gray) from the ft laud galleria store - picked it up at same store at 9:15 - they actually let me in store early...10 min later, I had the phone.