Writing to Publish--Good Business, or Oldest Profession?

I've always stated that I couldn't write to publish. I've always said that I just wrote the story that wanted to come out and then looked for a market that it fit. And that was true, and still is true--for a given value of "true", as fantasy author Terry Pratchett might say.

The thing is, I found that I enjoy the challenge of writing for themed anthologies. The writing critique group to which I subject myself, Southern Indiana Writers, has been publishing a themed anthology every year for abou...