At first I was all “Eight subs for the price of four? Now all I need is a deal on a lake!” But it turns out it’s actually a Groupon deal on Quiznos sub sandwiches, not a way to accumulate your own underwater fleet. Alas.
But hey, if you like Quiznos, I guess getting all those sandwiches for half price is good, too. And certainly poses fewer storage problems.