This. We're down to toast soaked in milk. The classes I'd actually want to keep are long gone, and I'm just voting out of habit, and because I don't want the dullest class in existance to win.
Toast might not be the most flavorful breakfast in the world, but it will always be one of the most popular. Yes, It is bland, and it is boring, and it is everywhere...but that is precisely why it is awesome. Toast is familiar; people know what they are getting and what it will taste like, every time.
While everyone would agree that, say, a Denver omellette has more flavor than toast, it will never be as popular as toast. Some people don't like eggs, some people don't have time to stand over a skillet or wait at the diner, some people can't have that much cholestrol, some people are allergic, or lactose intolerant, some people only eat Kosher meals, some people are vegan, etc, etc. And you can't eat a Denver omelette every single morning without wrecking your health, no matter how active you are.
The more ingredients a recipe contains, the fewer customers it will appeal to. The more moving parts a machine has, the more often it will break down. More lines of code = more bugs to fix, etc.
But good old reliable toast is uncomplicated, inexpensive, quiet. Load your favorite bread, push a button, and by the time you've poured yourself a cup of coffee, click! you have a hot, portable snack that will tide you over until lunch.
Pass the jam.