So there you have it: there's only one story. What's a poor author to do?
Write something original anyway. By far the most likely stories to make it out of our slush are original in some way. As Agent Nathan says "It really does need to feel fresh, but that's not the same as being completely original. The originality is all about how it's done, not what it's about." I agree.
So, how can you make your work fresh? Your story can go deep with world-building or characterization or theme or your-idea-here. You could combine two or more genres: fantasy, science fiction, macabre, your-choice-here. You could write with a unique voice. (I'm reminded of Everything Ravaged, Everything Burned by Wells Tower.) Or, your-idea-here. What you think? What makes a story fresh?
Send Electric Spec your original a.k.a. fresh stories!