Maybe, but if you're not careful, it can backfire. E.N. Publishing teamed with a company early on. I found so many typographical and grammatical errors on the first page of one of their demo products that I had to make sure I wasn't buying anything from that group's authors when I bought something from E.N. Granted, the book sounded good, and got fairly decent reviews, but if it looks like it was never proof-read, I tend to be a bit more skeptical of the rules content.