Great interview. I never trusted POD and never will. It's in league with that community center writing class, "any schmuck can write" vibe that allows very bad books and stories to get published. I've met a few earnest writers who did POD at cons but they never seem to get ahead. Also, you don't get that marketing junket every new writer gets and that in itself is very expensive.
I've also found it irritating that every writing panel at cons is almost all POD writers. Where is their credibility? It's easy to max out a credit card and do a POD.
You nailed every reason I will never do POD.