Nah, this story is just exceptionally good. Asimov was a fine writer, but this story was his crowning achievement in short fiction and he knew it too. You can read his other things and none of them will give the same feeling.

Nightfall is a decent story though. But yeah, The Last Question is in a league of its own. It's one of my favorite short stories ever along with The Library of Babel by Borges, The Great Automatic Grammatizator by Roald Dahl, and "Repent, Harlequin!" said the Tick-Tock Man by Harlan Ellison.