Are short story collections dead?

[Have a happy and safe Thanksgiving!]

For me, probably DOA. I have three collections (not counting the one I offer as a PDF free for the asking), and they sell zilch. Two are even priced low in order to serve as an introduction to my writing. It doesn’t matter. They don’t do well. I have a short story in a crime anthology too. But whether crime/mystery/thriller or sci-fi, it just seems readers aren’t interested in short stories or novellas.

That’s hard to understand. In our current hectic lif...