I don't see myself as a success, the only moderately successful writing I did is the Forgestriker series, which hit a good seam of sales at Barnes & Noble.
Chronicles of Mark Johnson was awarded the certificate above in October, 2012, but never sold after that.
At this moment, my sales have hit another low point, and while I am selling it's only the two months of February & March, which stop my sales from looking totally washed out.
I have lots of stories to edit, but after the failure of Chronicles, I am loathe to devote a lot of time to something which in the end I may end up giving away.
I had plans to bring a book -- or two -- out in print, but falling sales have cancelled that idea. If you aren't willing to part with nickels/ dimes for months of work on an e-book, I can't see books being sold.