Mega record - 4 large pizzas from Domino's ordered for me only at once

Normally, I only get 1 pizza, rarely 2 (2 mainly only if 14 inch is the biggest size available). With Domino's having a huge special going on where a large 2-topping pizza is $5.99, why pass up the chance? That's much cheaper than Wal-mart! The only catch is that it's carry out only. So, to make the most of it, since today (Feb 19, 2015) is the last day, I got 4 pizzas, to last me for as long as reasonable. Too long and the pizzas go stale. Too short and I'm missing out. In effect, this is the equivalent of a single pizza that's 28 inches. Why not 56? Remember, it's area you're dealing with, not diameter. Lined side by side, yes, it would be 56.