Surprisingly, I've had a lot of success selling it. I couldn't tell you if folks are paying for it afterwards or not. I've always assumed that they'll pay for the next one if they enjoyed the first one. Establishing a readership is more important for me at this point. It's hard to get readers to take a chance on an unknown unless the book is really cheap or free. So I don't mind offering it for free every now and again simply to get my name out there.
On a similar note, the book is 50% off at Smashwords for the month of July!! It's in the Top 10 bestsellers at Smashwords.
http://www.smashwords.com/books/cate...ular/1/any/any
Use code SWS50 to get the discount.
Enjoy!
David