Well, your fans are the ones who are buyin'.
So you've probably made the right choice for you.
Lemme just say as someone who once in a while gets paid for pdf books, I can't stand DTRPG. There is the moral angle that Psion pointed out - I don't think it's right for anyone to control how someone who bought my book uses my book. It's a limit on how often you can copy and transfer the file, and it's definately not as secure as they would have you believe (WotC released Frostburn on DTRPG, and that wouldn't stop me from downloading it for free if I wanted to). I think to a certain extent, the Digital Age has opened up Pandora's Box on this...there is no way, ever, that anyone can ever stop the pirating of your stuff. If people want it for free, they can get it. You can't stop it. And to me, that's the only thing DTRPG offers when compared to other pdf stores -- that false sense of security, which allows them to get exclusive contracts with heavyweights who think they're getting what they're really not. And they give *nothing* worthwhile in return.
Yeah, I know people could download my books and transfer them to friends and I wouldn't get paid for it. But so what? The only potential consumers are those who will actually buy it -- their buddies wouldn't buy it anyway, so I'm not loosing a sale, and maybe the friends will like it enough to buy the next one. IMHO, DTRPG is like buying a book you can't show your friends. It's wrong to stop generosity, even if that means I make less money for it. While I have no delusions that the honor system works, it does work for some people...those are who I'm selling to, those are who I'll talk personally with, those are who I'll produce exclusive content and supplements for. Because I'm writing this book for people like me -- who love the game, who want to get some more use out of it, and who respect the creators enough to slip them $3 for a pdf as incentive to keep going.
DTRPG makes you feel like a potential suspect from the very get-go (which their customer service record seems to support, though I admit going on hearsay with that). I find it's much more satisfying to try and maintain a dialogue with those who buy my stuff, to talk to them about it and about their games, to treat them as a friend that I'd like to see buy more of my stuff.
To take a variation on a theme: Shopping at DTRPG is like having someone you live with murdered. Even if you're innocent, you're still a suspect. I'm not going to assume everyone with my book on their computer might want to load it into a file-sharing program. Some prolly will, and some prolly got it that way, and I hope they enjoy the product. But it's not them I'm interested in asking the opinion of. It's not them I'm interested in seeing what other products they'd like. It's not them I ask how this week's game went. I never had delusions of financial stability making pdf files. I just hope that some people who like my stuff like to see me keep making stuff, and so will make with the dough.
I've prolly babbled enough. I'd say you made the right choice because your fans are the ones who care.
But as for me? DTRPG can pull ahead to the next window.
