It's somewhat sad that my standard of living is so low, but I perceive the couple hundred bucks or so I make a month off of writing for E.N.Publishing to be quite reasonable. But I've got a second job, and I'm sharing rent with a friend, so my costs are low.
But I'm not making anywhere near $25,000 a year. Someone must've been lying to me about the whole 'value of a college education' thing. It's great, and I'm glad I did it, but I think they exaggerated the numbers. Or maybe they were just talking about doctors and lawyers.
Anyway, I like to think I write only material that's original and good. Most of E.N.Pub's products have been more toolkit, less sourcebook. More Manual of the Planes, less Sword & Fist. It's obviously true that sales are down from two years ago -- we sold like 300 copies of Wild Spellcraft in the first month, whereas Elements of Magic Revised got about half that, despite being bigger, better, and having a somewhat established fanbase from those who got the original book. But I attribute the lower sales less to a 'failing of the d20 movement' and more to the fact that the economy is kinda sucking.
I do wish we'd put up more books for Print on Demand. They're not expensive compared to normal print books (since you cut out the middle man), and they're just as good in quality. Trying to get hundreds of game and hobby stores to stock your book is, I'm sure, tough. I don't work on that end of the business, though. I just sit here, writing my ideas out, hoping people enjoy them.