I loved them because it was a lot of food and they were cheap!I thought the sauce and pepperoni were served on the cardboard (AKA crust)?
When I first joined the Air Force, it took all of one paycheck and half of the other to pay for my little truck and the insurance, so I never had much extra money for the first few months. It didn't matter, because I ate at the dining hall for free, but what little money I had, I'd spend it on cheap fast food, like those BK Burger Bundles and Little Caesar's Pizza Pizza!
I ate at Little Caesar's for the first time in decades about a year ago, and the pizza, while still definitely a fast food product, was much, much better than what we were getting in the 80's, but I would have traded it in an instant for one of those "vintage" ones.