One of my favorite Marvel titles from years gone by was the "What If?" series. In it, the Marvel "Bullpen" hypothesized what would happen if certain key aspects of Marvel continuity were changed. For instance, the premiere issue asked "What If Spider-Man Joined the Fantastic Four?"
Which brings me to another issue featuring the FF. In 1982, the book asked "What If the Fantastic Four Had Not Gained Their Super-Powers?" The story is mildly interesting, sustained only by great John Byrne artwork.

But the answer to the issue's question is simple: The book would've SUCKED!
Plain enough? I mean, who the hell would want to read about four average joes taking on the likes of Dr. Doom, the Silver Surfer and Galactus? Not me!