You sure are working hard for such a small return. I went the same route you did, spent unnumbered amount of hours, long distance phone calls, paper and ink for posters, gas for my car, press releases, etc all for the privelege of having my books in a bookstore. Barnes and Nobles purchased five of my first book and place them in their store and sold all five copies. I was excited for sure.
Then reality set in when I received my royalty check from PublishAmerica. I received only $4.31 royalities from those five books. I have never worked so hard for so little in my whole life.
In doing some research here is something that I found really interesting.
"you will sell very few books, if any at all, through brick and mortar bookstores. Bookstores expect a 55 percent minimum wholesale discount on books which we cannot give because it makes the price per book too high. We give a 40 percent wholesale discount which is enough to have books listed in internet sites.
Bookstores know that most books published by POD have little or no promotion and will be unlikely to sell. Nearly all bookstores have access to the Ingram catalog and can order the books, however, depending upon individual store policies, some will allow customers to special order the books and some will not. Equally important, how many customers will go to a bookstore to order when they can just as easily order themselves over the internet?
To put the above in a nutshell, you would likely be wasting your time by focusing on promoting to brick and mortar bookstores."
This person is correct. Why would someone want to go to the hassle of going to a bookstore when I can purchase the same thing on line, from the privacy of my home? I can have it sent directly to me and save all the gas, and hassles of the bookstore.
Generally, I can purchase a book from the publishers website and receive a discount of somekind saving me money in the process.
.
At least it's off the market now. 
