Just Another Book for the Stack

I belong to a writer's group and at each get-together, we read what we recently wrote. For me, that happened to be the "Guilt Free Reading" article I had published on Hubpages. http://deenygirl.hubpages.com/hub/Guiltfreereading  We meet at Barnes and Knoble and of course,  we are surrounded by thousands of books. Basically my story was relating about how difficult it is to read the stacks of books I already have and how I have gravitated to audiobooks in order to multitask. My reading was well recieved--most can relate, but when we left for the night, I went down to pay for the one book I wanted and picked up another. I wonder how long it will remain on the stack?