Whopper on it's own here in Appleton is $6.89.
Today if you spent one dollar, you could get a free cheeseburger. Looked at their menu, and the cheapest thing was a soda for $1.89. Why say spend a dollar to get the burger when there is nothing remotely close to one dollar on their menu.
Also, for years any size McDonalds soda was $1.00. Then last summer it went to $1.29, now it's small $1.29, Medium 1.49 and large 1.69.