For a time, you could make a living writing short stories for genre rags. A matter of a few decades, but still. Without needing to be a household name, even.
They're still the only places that pay non-famous and non-trendy people any money for short fiction. Most literary fiction publications below the tippy-top don't pay a dime, and lit-fic fosters a culture of accepting that state of things, even shaming people for asking about pay. Can't make a living in genre short fiction and the odd hastily-written pulp novel anymore—hasn't been enough demand for decades—but getting a check feels good, at least, even if it's two figures, and you won't get that in lit-fic.