They're insanely cheap. That's why they sell. They're cheap so the volume is there so they stay cheap. I recall that I needed some 8-pin parts a while back to

They're insanely cheap. That's why they sell. They're cheap so the volume is there so they stay cheap. I recall that I needed some 8-pin parts a while back to test something package-related. I looked around for the cheapest part I could find and guess what... it turned out that the 358 was the absolute lowest cost thing in the world in 8 pins. Cheaper even than dummy parts with no silicon in them. That's how cheap they are.