You can buy the whole pizza in 12 slices for $17 USD, but the slices are smaller, the mega slice in question is legitimately almost a quarter of the pizza, and is priced as an impulse item. I had no problem going by Casey's on my way into work, buying this plus an extra slice for like 9 dollars and basically eating a half a pizza and getting enough soda for half the day. It isn't a bad deal actually, and I had QUITE the appetite.