Monte Cristo Sandwich

I don't understand why this recipe calls for 3 slices of bread per sandwich. I guess it makes it a little more filling, and you might argue it's a little more refined, but I prefer the more obvious flavors of the 2-slice version. In particular, I think the egg batter gets downplayed when there's an unbattered slice of bread in the middle, and that's a key to a good monte cristo. (I also like a little mustard in the sandwich, though you could always serve that on the side.)