I paid $5.99 for one.
While the Bacon King doesn't bring anything new to the table in terms of ingredients, it is a very hefty burger. The width of the burger is greater than a lot of sit-down places, although flatter as a result.
The bacon was plentiful and mostly crispy but lacked in flavor.
Of the sauces, the ketchup mostly prevailed over the mayo making the burger just a bit more tangy than I'd like (I'm sure it varies though).
Nutritional Info - Burger King Bacon King Burger (327g)
Calories - 1040 (from Fat - 630)
Fat - 69g (Saturated Fat - 28g)
Sodium - 1900mg
Carbs - 48g (Sugar - 10g)
Protein - 57g