Comment by pyrale

The article kind of misses that cost has two axes : development cost and maintenance cost.

low cost/low value software tagged as disposable usually means development cost was low, but maintenance cost is high ; and that's why you get rid of it.

On the other hand, the difference between good and bad traditional software is that, while cost is always going to be high, you want maintenance cost to be low. This is what industrialization is about.