I love those quarter machines at the mall where you can get just the banana runtz

They still exist but they aren't bred at scale anymore.

A lot of the suitable land for the banana is contaminated with the fungus that causes Panama Disease so they can only be planted on land without it.

A decade ago, a new strain of the fungus that infects Cavendish was detected. There isn't any real replacement or treatment for it yet, meaning there is a high chance that all edible bananas will go extinct.

It's actually not extinct like a lot of people say though, just extremely difficult to find.

That's because it doesn't taste like the bananas we eat nowadays. It's a flavor based on the Gros Michel banana, which was largely wiped out in the 1960s by a disease. The bananas we eat today are less flavorful, but they're also resistant to that disease.