I would pass them on unless they are ones you like to re-read any of them over again. I have gotten rid of most of my books and just wear out my library card (my DH's phrase) as well as Overdrive on my Nook. I rarely buy any books anymore. Magazines are a different story.
I love to read and just for fun I have been logging how many I have read since the beginning of the year (so far it's around 40 - both regular and Overdrive.