call around (or stop in) to different 'gamestop' locations, some will let you know what day they generally get things delivered and if they think they might be getting any in.
seriously? every time i'm in target or walmart or kmart or circuit city or best buy or toysrus they have then on the shelf
yeah i know. Im litterally 3 min from the richfield one and they said they had five and I went over their right away and they had only one left.
random people that won't even use it end up buying them with hopes of reselling for profit. usually best buy makes some sort of announcement over the speaker that they just got wii's in or they start telling people. target and those other places, much easier to find. everyone of my friends that has a wii got theirs at target. and that is where I found mine also.