Garren Jacobsen
Auror
I don't think that readers want a straight up rewrite of another book, but they want familiar characters who follow a familiar path to a familiar conclusion.
Since I'm pretty new at self publishing, most of my thoughts on the business are based purely on supposition and on what I've read others say. From my own recent experience, however, I'm learning that the key to success is meeting reader expectations. Those expectations are based on all the other books they've read in the genre, and the more you deviate from those expectations, the more readers you turn off.
If you want to be successful, I really believe that you absolutely have to consider what your readers' expectations are and how your book measures up to those expectations. If your "originality" deviates too much from the expected, I really feel that it's going to hurt you.
But doesn't an author shape those expectations? Sure, coming into a book an author has to deal with preconceived expectations, but, at the outset an author is also making an agreement with the reader and setting up other expectations. So, while an author has to work with some base assumptions, the author can also shape those base assumptions. This happens by blending the familiar expectations with original elements that have a certain nexus to those expectations. If done well the reader will barely notice the change. This is a matter of execution, not of whether or not it should be done.