This is a very minor detail I don't see talked about often, but the Pizzaplex was greatly loved during its lifespan and mourned after it's closure.

We know that the Pizzaplex isn't actually that great, far from it actually. Dozens of murders, gadgets that accidentaly kill people, spirits and agony just everywhere, it's built on top of the remains of Freddy Fazbear's Pizza Place and MCM(?), it has a killer robot that controls everything in it's basement, it's built on top a sinkhole, everything is controlled by an evil AI trying to mimick William Afton, and to top it all off it is owned by probably the most corrupt and malicious company in the world. Based off of RUIN, we know that some areas of the pizzaplex aren't even real, they are just hallucinations and illusions put in place to save money and trick guests. 

But from the publics perspective, its a lot different. A long dead company coming back and creating the Pizzaplex only a few years after it's creation. Old memories and nostalgia being reignited as this once dead franchise comes back in the most extravagant way possible. A huge mall/indoor amusement park housing the most advanced animatronics and tech in the world. A national hit, an unbelievable success. People probably came to see the pizzaplex from across the country. And to top it all off, sentient animatronics that an actual interact and form bonds with guests. 

And after the closure of the pizzaplex, hundreds, if not thousands of people mourned it. For all the bad that the pizzaplex had, it created so many happy memories and nostalgia for thousands of kids. 

**This is a extremely minor detail, but I think it is an important one. It shows that outside of the horrors and tragedies that we see and hear in the games, there was another side of the pizzaplex beloved by thousands. Although it is a front for something darker and malicious, the Pizzaplex and it's animatronics likely left a huge impact, on not only the kids that went there, but the national history of Fazbear Entertainment.**

Idk I like stuff like this, even if it is super minor, it's pretty cool worldbuilding imo

Despite all it's flaws, The Pizzaplex was loved and missed greatly