With eBooks, that is, not age -- unfortunately. One benefit I am taking advantage of from the eBook phenomenon is the discovery (or rediscovery, sometimes) of older titles by authors I really enjoy. Whether it's through their normal publisher, a digital publisher, or self-publishing, many popular authors are now making previously hard-to-find backlist titles available to the eBook crowd.
Recently, I made my way through all of Sylvia Day's historical romances, written prior to her huge success with Bared to You , and found that I really liked them even more. I am also a big fan of Shelly Laurenston's  hilarious Pride series, and I was able to go back through eBooks to make sure I got all of the stories. If you read this series, you know that you have to get all of the stories. I've even delighted in some of the Sandra Brown titles  I first read as a teenager.
If you haven't already done so, head over to the HCPL Digital Media Catalog  and see if you can find some intriguing new/old titles. I'll see you there!