Based on this article, I now believe the reason we say "best thing since sliced bread" is purely marketing. The (apparent) originator of sliced bread seems to

Based on this article, I now believe the reason we say "best thing since sliced bread" is purely marketing. The (apparent) originator of sliced bread seems to have called it "the best thing since wrapped bread", and I guess that's saying something? Anyway, your points are fine, but surely being made to slice your own bread isn't the end of the world. The outcry depicted in this article gives me hope/despair that there is nothing new about reddit-style whining about everything.