From the Wikipedia page about the practice [1]:
> he reduced his costs and increased his profits at the expense of poorer performance [...] so the Muntz TVs were adequate for a very large fraction of his customers. And for those [...] where the Muntz TVs did not work, those could be returned at the customer's additional effort and expense, and not Muntz's. He focused less resources in the product [...] and focused more resources on advertising and sales promotions.
While reading this I thought "This guy is a used car salesman if I've ever seen one", and he was! haha