I figure my lasagna is well over a dozen layers, (3-4 layers of pasta, plus layers of sauce, multiple types of cheeses including a ricotta/spinach blend, meats, and mushrooms.)

I tried counting the layers of pasta in that picture and came up with around 30, which means something like pasta-sauce-cheese-pasta repeated around 30 times.

As Len says, mostly for show, sort of like the 12 pattie 'special' at In-N-Out. People can order it, and even eat it, but is it a gustatory experience worth repeating?