There is exactly one model of Kindle Fire, while there are about 16 models of iPad, two of which are second and third on the list and iPads make up a majority of the top 15 list. Did number 1 outnumber #2+#3+#5+#6…?
Could the Fire be the top selling tablet at Best Buy still? Sure (unlikely), but there is no way to tell from the data provided.
And that’s before you get the to the whole $199, making money on the razor blades business model.