Indie authors are finding the most success with eBooks, by a considerable amount. But, since Print on Demand is easy and free through Amazon’s CreateSpace.com, what will it hurt? Then, you’ll have something tangible you can give to reviewers, friends and relatives, besides having one more way to market your work. There are other POD printers out there that do a fine job. Many of them charge a fee, depending on the extent of the work needed from their end. You should check out Lulu.com, iUniverse.com, Xlibris.com, and others before you make up your mind. Also, several of these POD printers, including Lulu.com will do hardcover books besides the popular trade paperback—CreateSpace.com only does trade paper but has a great distribution network. And no one is to say you can’t do both–trade paperback with CreateSpace.com and hardcover with Lulu.com.