Why wait to find out if there will be a Wii price drop on Monday? Best Buy is selling Wiis on its website for $169.99 right this second. Unfortunately, we can't really glean anything about the manufacturer price from this, as Best Buy has labeled its discount a "sale."
Functionally, though it works out the same either way, with you able to trade $170 for a Wii. It's available in white or black, both variants including Wii Sports, Wii Sports Resort, and a Wii Remote Plus. The older MotionPlus bundle is also available for the same price, if for some reason you'd prefer a bigger controller.