Absolutely, Dick, lulu is really an amazing technology and business plan as well.
It's really incredible the things you can do with it, quite apart from publishing books.
I know people who just use it to run off a copy of a final draft so they can do the last proofing and read-over in book form. EXCELLENT idea, I'd do it myself if I could get mail.
They probably publish more academic papers and technical/business reports than they do books. (Just my guess)
It's one of those things like inventing the printing press or internet that suddenly change the whole way information arranges itself.
And the cool thing is, they don't seem to be evil. You don't run into lulu-haters. Which says something, right there.